cyxc

2026-05-05 20:36:41 +02:00
parent fd092ef615
commit eb8b04a621
14 changed files with 39 additions and 969 deletions
--- a/modules/mining-checker/assets/js/app.js
+++ b/modules/mining-checker/assets/js/app.js
@@ -124,18 +124,6 @@
    return `${fxBaseUrl}/latest?base=${encodeURIComponent(String(base || 'USD').toUpperCase())}`;
  }

-  function buildExternalCurrenciesUrl() {
-    if (fxProvider === 'currencyapi') {
-      const params = new URLSearchParams({ output: 'json' });
-      if (fxApiKeyMask) {
-        params.set('key', fxApiKeyMask);
-      }
-      return `${fxCurrenciesUrl}/api/v2/currencies?${params.toString()}`;
-    }
-
-    return fxCurrenciesUrl;
-  }
-
  async function loadLatestDebugTrace() {
    try {
      const response = await fetch(`${apiBase}/debug/latest`, {
@@ -667,8 +655,6 @@
    });
    const [fxHistory, setFxHistory] = useState([]);
    const [fxSelection, setFxSelection] = useState(['DOGE', 'USD', 'EUR']);
-    const [fxDisplayBase, setFxDisplayBase] = useState('USD');
-    const [fxSearch, setFxSearch] = useState('');
    const [reportCurrencyOverride, setReportCurrencyOverride] = useState(() => {
      const value = String(getCookie('mining_checker_report_currency') || '').toUpperCase();
      return /^[A-Z0-9]{3,10}$/.test(value) ? value : '';
@@ -1147,12 +1133,6 @@
      }
    }, [activeTab, projectKey]);

-    useEffect(() => {
-      if (activeTab === 'currencies') {
-        loadFxHistory(projectKey);
-      }
-    }, [activeTab, projectKey]);
-
    useEffect(() => {
      async function loadSavedDashboards() {
        if (!payload || !currentDashboards.length) {
@@ -1854,83 +1834,6 @@
      }
    }

-    async function refreshCurrencyCatalog() {
-      setSaving(true);
-      setError('');
-      setMessage('');
-      try {
-        emitDebug({
-          type: 'external:request-plan',
-          label: 'Ich rufe jetzt extern den Waehrungskatalog auf',
-          provider: fxProvider,
-          url: buildExternalCurrenciesUrl(),
-          method: 'GET',
-          headers: { Accept: 'application/json' },
-        });
-        const probe = await request(`${apiBase}/projects/${encodeURIComponent(projectKey)}/currencies-probe`, {
-          method: 'POST',
-          headers: { 'Content-Type': 'application/json' },
-          timeoutMs: 20000,
-        });
-        emitDebug({
-          type: 'external:response',
-          label: 'Hey, hier ist der Response vor dem DB-Schritt',
-          url: probe.url,
-          http_status: probe.http_status,
-          curl_error: probe.curl_error,
-          response_headers: probe.response_headers,
-          response_body: probe.response_body,
-        });
-        const result = await request(`${apiBase}/projects/${encodeURIComponent(projectKey)}/currencies-refresh`, {
-          method: 'POST',
-          headers: { 'Content-Type': 'application/json' },
-          timeoutMs: 20000,
-        });
-        setPayload((current) => {
-          const next = normalizeBootstrap(current, projectKey);
-          return {
-            ...next,
-            settings: {
-              ...next.settings,
-              currencies: Array.isArray(result.currencies) ? result.currencies : next.settings.currencies,
-            },
-          };
-        });
-        setMessage(`Waehrungskatalog synchronisiert. ${result.synced_count || 0} Waehrungen verarbeitet.`);
-      } catch (err) {
-        setError(err.message);
-      } finally {
-        setSaving(false);
-      }
-    }
-
-    async function saveFxSelection() {
-      setSaving(true);
-      setError('');
-      setMessage('');
-      try {
-        await request(`${apiBase}/projects/${encodeURIComponent(projectKey)}/settings`, {
-          method: 'PUT',
-          headers: { 'Content-Type': 'application/json' },
-          body: JSON.stringify({
-            baseline_measured_at: currentSettings.baseline_measured_at,
-            baseline_coins_total: currentSettings.baseline_coins_total,
-            daily_cost_amount: currentSettings.daily_cost_amount,
-            daily_cost_currency: currentSettings.daily_cost_currency,
-            report_currency: currentSettings.report_currency || 'EUR',
-            fx_max_age_hours: currentSettings.fx_max_age_hours || 3,
-            preferred_currencies: fxSelection,
-          }),
-        });
-        await loadBootstrap(projectKey);
-        setMessage('Waehrungs-Auswahl gespeichert.');
-      } catch (err) {
-        setError(err.message);
-      } finally {
-        setSaving(false);
-      }
-    }
-
    async function copyDebugConsole() {
      const content = debugEntries
        .slice()
@@ -1964,80 +1867,10 @@
      }
    }

-    function addFxSelection(code) {
-      const normalized = String(code || '').toUpperCase().trim();
-      if (!normalized) {
-        return;
-      }
-
-      setFxSelection((current) => current.includes(normalized) ? current : current.concat([normalized]));
-      setFxSearch('');
-    }
-
-    function removeFxSelection(code) {
-      const normalized = String(code || '').toUpperCase().trim();
-      setFxSelection((current) => current.filter((item) => item !== normalized));
-    }
-
    function resetReportCurrencyOverride() {
      setReportCurrencyOverride('');
      setCookie('mining_checker_report_currency', '', 0);
    }
-
-    const selectedFxCodes = fxSelection.length ? fxSelection.map((code) => String(code || '').toUpperCase()) : ['DOGE', 'USD', 'EUR'];
-    const fxDisplayBaseNormalized = String(fxDisplayBase || 'USD').toUpperCase();
-    const groupedFxHistoryMap = new Map();
-    fxHistory.forEach((row, index) => {
-      const fetchId = row.fetch_id || `legacy-${row.fetched_at || 'none'}-${index}`;
-      if (!groupedFxHistoryMap.has(fetchId)) {
-        groupedFxHistoryMap.set(fetchId, {
-          fetch_id: fetchId,
-          fetched_at: row.fetched_at || null,
-          rate_date: row.rate_date || null,
-          base_currency: row.base_currency || null,
-          provider: row.provider || null,
-          rates: {},
-        });
-      }
-
-      const group = groupedFxHistoryMap.get(fetchId);
-      group.rates[String(row.target_currency || '').toUpperCase()] = row.rate;
-    });
-
-    function computeDisplayedFxRate(group, targetCode, displayBaseCode) {
-      const normalizedTarget = String(targetCode || '').toUpperCase();
-      const normalizedDisplayBase = String(displayBaseCode || '').toUpperCase();
-      const fetchBase = String(group.base_currency || '').toUpperCase();
-
-      if (!normalizedTarget || !normalizedDisplayBase) {
-        return null;
-      }
-      if (normalizedTarget === normalizedDisplayBase) {
-        return 1;
-      }
-
-      const targetRateRaw = normalizedTarget === fetchBase ? 1 : group.rates[normalizedTarget];
-      const displayBaseRateRaw = normalizedDisplayBase === fetchBase ? 1 : group.rates[normalizedDisplayBase];
-      const targetRate = targetRateRaw === null || targetRateRaw === undefined ? null : Number(targetRateRaw);
-      const displayBaseRate = displayBaseRateRaw === null || displayBaseRateRaw === undefined ? null : Number(displayBaseRateRaw);
-
-      if (!Number.isFinite(targetRate) || !Number.isFinite(displayBaseRate) || displayBaseRate === 0) {
-        return null;
-      }
-
-      return targetRate / displayBaseRate;
-    }
-
-    const groupedFxHistory = Array.from(groupedFxHistoryMap.values())
-      .map((group) => ({
-        ...group,
-        selected_rates: selectedFxCodes.map((code) => ({
-          code,
-          rate: computeDisplayedFxRate(group, code, fxDisplayBaseNormalized),
-        })),
-      }))
-      .filter((group) => group.selected_rates.some((item) => item.rate !== null))
-      .slice(0, 30);
    const debugConsoleText = debugEntries
      .map((entry) => `${entry.time} · ${entry.type}\n${JSON.stringify(entry, null, 2)}`)
      .join('\n\n');
@@ -2441,137 +2274,6 @@
        ]);
      }

-      if (activeTab === 'currencies') {
-        const selectedSet = new Set((fxSelection || []).map((code) => String(code).toUpperCase()));
-        const searchNeedle = fxSearch.trim().toLowerCase();
-        const currencySuggestions = currencies
-          .filter((currency) => !selectedSet.has(String(currency.code || '').toUpperCase()))
-          .filter((currency) => {
-            if (!searchNeedle) {
-              return false;
-            }
-            const code = String(currency.code || '').toLowerCase();
-            const name = String(currency.name || '').toLowerCase();
-            return code.includes(searchNeedle) || name.includes(searchNeedle);
-          })
-          .slice(0, 12);
-        return h('div', { className: 'mc-stack' }, [
-          h('div', { className: 'mc-stack' }, [
-            panel('Waehrungs-Update', 'Auswahl wird in den Mining-Checker-Settings gespeichert und steht damit auf Handy und Desktop gleich zur Verfuegung.', [
-              h('div', { key: 'actions', className: 'mc-inline-row' }, [
-                h('button', {
-                  key: 'save-selection',
-                  type: 'button',
-                  className: 'mc-button mc-button--ghost',
-                  onClick: saveFxSelection,
-                  disabled: saving,
-                }, saving ? 'Speichert …' : 'Auswahl speichern'),
-                h('button', {
-                  key: 'refresh-rates',
-                  type: 'button',
-                  className: 'mc-button mc-button--primary',
-                  onClick: refreshSelectedFxRates,
-                  disabled: saving,
-                }, saving ? 'Aktualisiert …' : 'Alle Wechselkurse aktualisieren'),
-                h('button', {
-                  key: 'refresh-catalog',
-                  type: 'button',
-                  className: 'mc-button mc-button--ghost',
-                  onClick: refreshCurrencyCatalog,
-                  disabled: saving,
-                }, saving ? 'Synchronisiert …' : 'Waehrungskatalog sync'),
-              ]),
-              h('div', { key: 'types', className: 'mc-mini-grid' }, [
-                h('div', { key: 'fiat', className: 'mc-mini-card' }, [
-                  h('div', { key: 'fiat-label', className: 'mc-field-label' }, 'Fiat'),
-                  h('div', { key: 'fiat-value' }, `${fiatCurrencies.length} Waehrungen`),
-                ]),
-                h('div', { key: 'crypto', className: 'mc-mini-card' }, [
-                  h('div', { key: 'crypto-label', className: 'mc-field-label' }, 'Krypto'),
-                  h('div', { key: 'crypto-value' }, `${cryptoCurrencies.length} Waehrungen`),
-                ]),
-              ]),
-              h('div', { key: 'selection-title', className: 'mc-field-label' }, 'Bevorzugte Waehrungen fuer Anzeige'),
-              h('div', { key: 'selection-row', className: 'mc-currency-selection-row' }, [
-                h('div', { key: 'selected', className: 'mc-token-list mc-token-list--inline' },
-                  fxSelection.length
-                    ? fxSelection.map((code) => {
-                        const currency = currencies.find((item) => item.code === code) || { code, name: code };
-                        return h('button', {
-                          key: `token-${code}`,
-                          type: 'button',
-                          className: 'mc-token',
-                          onClick: () => removeFxSelection(code),
-                          title: `${code} entfernen`,
-                        }, [
-                          h('span', { key: 'label' }, `${code} (${currency.name || code})`),
-                          h('span', { key: 'close', className: 'mc-token-close' }, 'x'),
-                        ]);
-                      })
-                    : [h('div', { key: 'empty', className: 'mc-text' }, 'Noch keine bevorzugten Waehrungen ausgewaehlt.')]
-                ),
-                h('div', { key: 'search-wrap', className: 'mc-field mc-currency-search' }, [
-                  h('input', {
-                    key: 'search-input',
-                    type: 'text',
-                    value: fxSearch,
-                    className: 'mc-input',
-                    placeholder: 'Waehrung hinzufuegen: EUR, USD, DOGE oder Euro',
-                    onInput: (event) => setFxSearch(event.target.value),
-                  }),
-                ]),
-              ]),
-              h('div', { key: 'display-base-wrap', className: 'mc-field mc-currency-search' }, [
-                h('label', { key: 'display-base-label', className: 'mc-field-label' }, 'Darstellung auf Basis von'),
-                h('select', {
-                  key: 'display-base',
-                  className: 'mc-select',
-                  value: selectedFxCodes.includes(fxDisplayBaseNormalized) ? fxDisplayBaseNormalized : (selectedFxCodes[0] || 'USD'),
-                  onChange: (event) => setFxDisplayBase(event.target.value),
-                }, selectedFxCodes.map((code) => h('option', { key: code, value: code }, code))),
-              ]),
-              searchNeedle
-                ? h('div', { key: 'suggestions', className: 'mc-suggestion-list' },
-                    currencySuggestions.length
-                      ? currencySuggestions.map((currency) => h('button', {
-                          key: `suggestion-${currency.code}`,
-                          type: 'button',
-                          className: 'mc-suggestion',
-                          onClick: () => addFxSelection(currency.code),
-                        }, [
-                          h('strong', { key: 'code' }, currency.code),
-                          h('span', { key: 'name' }, currency.name || currency.code),
-                        ]))
-                      : [h('div', { key: 'no-match', className: 'mc-text' }, 'Keine passende Waehrung gefunden.')]
-                  )
-                : null,
-            ]),
-          ]),
-          h('div', { className: 'mc-stack' }, [
-            panel('Letzte 30 Kurs-Uploads', 'Zeigt die zuletzt gespeicherten Wechselkurse aus der Datenbank.', [
-              h('div', { key: 'history-table', className: 'mc-table-shell' }, [
-                h('table', { key: 'table', className: 'mc-table' }, [
-                  h('thead', { key: 'head' }, h('tr', null, ['Zeit', 'Stichtag', 'Fetch-Basis'].concat(selectedFxCodes).concat(['Provider']).map((label) => h('th', { key: label }, label)))),
-                  h('tbody', { key: 'body' },
-                    groupedFxHistory.length
-                      ? groupedFxHistory.map((row, index) => h('tr', { key: `${row.fetch_id || index}-${row.base_currency}` }, [
-                          h('td', { key: 'fetched' }, fmtDate(row.fetched_at)),
-                          h('td', { key: 'date' }, row.rate_date || 'n/a'),
-                          h('td', { key: 'base' }, row.base_currency),
-                        ].concat(
-                          row.selected_rates.map((item) => h('td', { key: `rate-${item.code}` }, item.rate === null ? 'n/a' : fmtNumber(item.rate, 8)))
-                        ).concat([
-                          h('td', { key: 'provider' }, row.provider || 'n/a'),
-                        ])))
-                      : [h('tr', { key: 'empty' }, h('td', { colSpan: 4 + selectedFxCodes.length }, 'Noch keine Wechselkurse fuer die ausgewaehlten Waehrungen gespeichert.'))]
-                  ),
-                ]),
-              ]),
-            ]),
-          ]),
-        ]);
-      }
-
      if (activeTab === 'mining') {
        const scenarioCurrency = selectedMinerScenario?.scenario_currency || reportCurrency;
        const scenarioCurrentDailyProfit = selectedMinerScenario ? convertMeasurementMoney(latest, selectedMinerScenario.scenario_current_daily_profit, reportCurrency) : null;
--- a/modules/mining-checker/design.json
+++ b/modules/mining-checker/design.json
@@ -8,7 +8,6 @@
  "sections": [
    { "key": "overview", "label": "Ueberblick" },
    { "key": "measurements", "label": "Messpunkte" },
-    { "key": "currencies", "label": "Waehrungen" },
    { "key": "mining", "label": "Mining" },
    { "key": "dashboards", "label": "Dashboards" },
    { "key": "settings", "label": "Settings" }
--- a/modules/mining-checker/docs/README.md
+++ b/modules/mining-checker/docs/README.md
@@ -49,7 +49,6 @@ modules/mining-checker/
 - `POST /api/mining-checker/v1/projects/{projectKey}/upgrade`
 - `GET /api/mining-checker/v1/projects/{projectKey}/connection-test`
 - `POST /api/mining-checker/v1/projects/{projectKey}/fx-refresh`
- `POST /api/mining-checker/v1/projects/{projectKey}/currencies-refresh`
 - `GET /api/mining-checker/v1/projects/{projectKey}/fx-history`
 - `POST /api/mining-checker/v1/projects/{projectKey}/legacy-fx-migrate`

@@ -88,9 +87,10 @@ Empfohlene Umgebungsvariablen:

 Laut OCR.space-Doku wird `POST https://api.ocr.space/parse/image` mit `file`, Header-`apikey`, optional `language`, `scale`, `detectOrientation`, `isTable` und `OCREngine` verwendet. Der Modulparser wertet die OCR.space-Felder `ParsedResults`, `ParsedText`, `IsErroredOnProcessing`, `ErrorMessage` und `OCRExitCode` aus. Quellen: https://ocr.space/ocrapi

-## Wechselkurse
+## Wechselkurse und Waehrungen

 Der Endpunkt `POST /api/mining-checker/v1/projects/{projectKey}/fx-refresh` delegiert den Abruf an das Modul `fx-rates`. Der Mining-Checker speichert dabei keine eigenen FX-Snapshots mehr, sondern referenziert die `fetch_id` aus `fx-rates`.
+Auch der Waehrungskatalog und die bevorzugten Waehrungen kommen ausschliesslich aus `fx-rates`. Der Mining-Checker fuehrt keine eigene Waehrungstabelle und keine eigene Alias-Verwaltung mehr im Laufzeitpfad.

 Empfohlene Umgebungsvariablen:

@@ -122,7 +122,3 @@ Pro Abruf entsteht genau ein Datensatz in `fx-rates` mit Basiswaehrung, Provider
 Falls noch historische Mining-Checker-Fetches in `miningcheck_fx_fetches` und `miningcheck_fx_rates` liegen, kann `POST /api/mining-checker/v1/projects/{projectKey}/legacy-fx-migrate` diese nach `fx-rates` ueberfuehren. Danach werden bestehende Messpunkte soweit moeglich auf die passende `fx_fetch_id` aktualisiert.

 Fuer Auswertungen, Berichte und Listen speichert der Mining-Checker pro Messpunkt die damals passende `fx_fetch_id`. Historische Umrechnungen laufen damit gegen genau den zugeordneten `fx-rates`-Snapshot.
-
-Mit `POST /api/mining-checker/v1/projects/{projectKey}/currencies-refresh` kann die Waehrungstabelle einmalig oder bei Bedarf aus `GET /api/v2/currencies?output=json&key=...` synchronisiert werden. Dabei werden Code, Name, Symbol und Sortierung in `miningcheck_currencies` gespeichert.
-
-Die im Tab `Waehrungen` ausgewaehlten Favoriten werden in `miningcheck_settings.preferred_currencies` gespeichert. Dadurch ist die Auswahl geraeteuebergreifend verfuegbar. Fuer bestehende Installationen ist dafuer einmal ein Schema-Upgrade noetig.
--- a/modules/mining-checker/sql/migrations/001_init.sql
+++ b/modules/mining-checker/sql/migrations/001_init.sql
@@ -5,22 +5,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_projects (
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
 );

-CREATE TABLE IF NOT EXISTS miningcheck_currencies (
-    code VARCHAR(10) NOT NULL PRIMARY KEY,
-    name VARCHAR(64) NOT NULL,
-    symbol VARCHAR(8) NULL,
-    is_active TINYINT(1) NOT NULL DEFAULT 1,
-    is_crypto TINYINT(1) NOT NULL DEFAULT 0,
-    sort_order INT NOT NULL DEFAULT 0
-);
-
-CREATE TABLE IF NOT EXISTS miningcheck_currency_aliases (
-    alias_code VARCHAR(10) NOT NULL PRIMARY KEY,
-    currency_code VARCHAR(10) NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_currency_aliases_currency FOREIGN KEY (currency_code) REFERENCES miningcheck_currencies(code) ON DELETE CASCADE
-);
-
 CREATE TABLE IF NOT EXISTS miningcheck_settings (
    id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
    project_key VARCHAR(64) NOT NULL,
@@ -38,9 +22,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_settings (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_settings_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_settings_daily_cost_currency_currency FOREIGN KEY (daily_cost_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_settings_report_currency_currency FOREIGN KEY (report_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_settings_crypto_currency_currency FOREIGN KEY (crypto_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_settings_project UNIQUE (project_key)
 );

@@ -59,8 +40,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_cost_plans (
    is_active TINYINT(1) NOT NULL DEFAULT 1,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_cost_plans_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_cost_plans_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_cost_plans_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE
 );

 CREATE INDEX idx_miningcheck_cost_plans_project_start
@@ -82,7 +62,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_measurements (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_measurements_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_measurements_price_currency_currency FOREIGN KEY (price_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_measurements_unique UNIQUE (project_key, measured_at, coins_total)
 );

@@ -101,7 +80,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_targets (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_targets_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_targets_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT fk_mining_targets_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL,
    CONSTRAINT uq_mining_targets_project_label UNIQUE (project_key, label)
 );
--- a/modules/mining-checker/sql/migrations/002_seed_doge_main.sql
+++ b/modules/mining-checker/sql/migrations/002_seed_doge_main.sql
@@ -2,22 +2,6 @@ INSERT INTO miningcheck_projects (project_key, project_name)
 VALUES ('doge-main', 'DOGE Mining Main')
 ON DUPLICATE KEY UPDATE project_name = VALUES(project_name);

-INSERT INTO miningcheck_currencies (code, name, symbol, is_active, sort_order)
-VALUES
-    ('EUR', 'Euro', 'EUR', 1, 10),
-    ('USD', 'US-Dollar', 'USD', 1, 20),
-    ('DOGE', 'Dogecoin', 'DOGE', 1, 100),
-    ('BTC', 'Bitcoin', 'BTC', 1, 110),
-    ('ETH', 'Ethereum', 'ETH', 1, 120),
-    ('LTC', 'Litecoin', 'LTC', 1, 130),
-    ('USDT', 'Tether', 'USDT', 1, 140),
-    ('USDC', 'USD Coin', 'USDC', 1, 150)
-ON DUPLICATE KEY UPDATE
-    name = VALUES(name),
-    symbol = VALUES(symbol),
-    is_active = VALUES(is_active),
-    sort_order = VALUES(sort_order);
-
 INSERT INTO miningcheck_settings (
    project_key,
    baseline_measured_at,
--- a/modules/mining-checker/sql/schema.mysql.sql
+++ b/modules/mining-checker/sql/schema.mysql.sql
@@ -5,22 +5,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_projects (
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
 );

-CREATE TABLE IF NOT EXISTS miningcheck_currencies (
-    code VARCHAR(10) NOT NULL PRIMARY KEY,
-    name VARCHAR(64) NOT NULL,
-    symbol VARCHAR(8) NULL,
-    is_active TINYINT(1) NOT NULL DEFAULT 1,
-    is_crypto TINYINT(1) NOT NULL DEFAULT 0,
-    sort_order INT NOT NULL DEFAULT 0
-);
-
-CREATE TABLE IF NOT EXISTS miningcheck_currency_aliases (
-    alias_code VARCHAR(10) NOT NULL PRIMARY KEY,
-    currency_code VARCHAR(10) NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_currency_aliases_currency FOREIGN KEY (currency_code) REFERENCES miningcheck_currencies(code) ON DELETE CASCADE
-);
-
 CREATE TABLE IF NOT EXISTS miningcheck_settings (
    id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
    project_key VARCHAR(64) NOT NULL,
@@ -38,9 +22,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_settings (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_settings_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_settings_daily_cost_currency_currency FOREIGN KEY (daily_cost_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_settings_report_currency_currency FOREIGN KEY (report_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_settings_crypto_currency_currency FOREIGN KEY (crypto_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_settings_project UNIQUE (project_key)
 );

@@ -63,8 +44,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_cost_plans (
    is_active TINYINT(1) NOT NULL DEFAULT 1,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_cost_plans_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_cost_plans_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_cost_plans_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE
 );

 CREATE INDEX idx_miningcheck_cost_plans_project_start
@@ -87,7 +67,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_measurements (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_measurements_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_measurements_price_currency_currency FOREIGN KEY (price_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_measurements_unique UNIQUE (project_key, measured_at, coins_total)
 );

@@ -107,8 +86,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_measurement_rates (
    provider VARCHAR(32) NOT NULL DEFAULT 'derived',
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_measurement_rates_measurement FOREIGN KEY (measurement_id) REFERENCES miningcheck_measurements(id) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_measurement_rates_base_currency_currency FOREIGN KEY (base_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_measurement_rates_quote_currency_currency FOREIGN KEY (quote_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_measurement_rate_pair UNIQUE (measurement_id, base_currency, quote_currency),
    KEY idx_miningcheck_measurement_rates_project_measurement (project_key, measurement_id)
 );
@@ -123,7 +100,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_payouts (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_payouts_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_payouts_payout_currency_currency FOREIGN KEY (payout_currency) REFERENCES miningcheck_currencies(code),
    KEY idx_miningcheck_payouts_project_payout_at (project_key, payout_at)
 );

@@ -144,8 +120,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_miner_offers (
    is_active TINYINT(1) NOT NULL DEFAULT 1,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_miner_offers_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_miner_offers_base_price_currency_currency FOREIGN KEY (base_price_currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_miner_offers_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE
 );

 CREATE TABLE IF NOT EXISTS miningcheck_targets (
@@ -160,7 +135,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_targets (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_targets_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_targets_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT fk_mining_targets_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL,
    CONSTRAINT uq_mining_targets_project_label UNIQUE (project_key, label)
 );
@@ -203,9 +177,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_purchased_miners (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_purchased_miners_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_purchased_miners_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL,
-    CONSTRAINT fk_mining_purchased_miners_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_purchased_miners_reference_price_currency_currency FOREIGN KEY (reference_price_currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_purchased_miners_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL
 );

 CREATE TABLE IF NOT EXISTS miningcheck_fx_fetches (
@@ -214,7 +186,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_fx_fetches (
    base_currency VARCHAR(10) NOT NULL,
    rate_date DATE NOT NULL,
    fetched_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_fx_fetches_base_currency_currency FOREIGN KEY (base_currency) REFERENCES miningcheck_currencies(code),
    KEY idx_miningcheck_fx_fetches_base_fetched (base_currency, fetched_at)
 );

@@ -225,6 +196,5 @@ CREATE TABLE IF NOT EXISTS miningcheck_fx_rates (
    current_value DECIMAL(20,10) NOT NULL,
    KEY idx_miningcheck_fx_rates_fetch (fetch_id),
    KEY idx_miningcheck_fx_rates_currency (currency_code),
-    CONSTRAINT fk_mining_fx_rates_fetch FOREIGN KEY (fetch_id) REFERENCES miningcheck_fx_fetches(id) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_fx_rates_currency_code_currency FOREIGN KEY (currency_code) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_fx_rates_fetch FOREIGN KEY (fetch_id) REFERENCES miningcheck_fx_fetches(id) ON DELETE CASCADE
 );
--- a/modules/mining-checker/sql/schema.pgsql.sql
+++ b/modules/mining-checker/sql/schema.pgsql.sql
@@ -5,22 +5,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_projects (
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );

-CREATE TABLE IF NOT EXISTS miningcheck_currencies (
-    code VARCHAR(10) PRIMARY KEY,
-    name VARCHAR(64) NOT NULL,
-    symbol VARCHAR(8),
-    is_active BOOLEAN NOT NULL DEFAULT TRUE,
-    is_crypto BOOLEAN NOT NULL DEFAULT FALSE,
-    sort_order INTEGER NOT NULL DEFAULT 0
-);
-
-CREATE TABLE IF NOT EXISTS miningcheck_currency_aliases (
-    alias_code VARCHAR(10) PRIMARY KEY,
-    currency_code VARCHAR(10) NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_currency_aliases_currency FOREIGN KEY (currency_code) REFERENCES miningcheck_currencies(code) ON DELETE CASCADE
-);
-
 CREATE TABLE IF NOT EXISTS miningcheck_settings (
    id BIGSERIAL PRIMARY KEY,
    project_key VARCHAR(64) NOT NULL,
@@ -39,9 +23,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_settings (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_settings_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_settings_daily_cost_currency_currency FOREIGN KEY (daily_cost_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_settings_report_currency_currency FOREIGN KEY (report_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_settings_crypto_currency_currency FOREIGN KEY (crypto_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_settings_project_owner UNIQUE (project_key, owner_sub)
 );

@@ -65,8 +46,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_cost_plans (
    is_active BOOLEAN NOT NULL DEFAULT TRUE,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_cost_plans_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_cost_plans_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_cost_plans_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE
 );

 CREATE INDEX IF NOT EXISTS idx_miningcheck_cost_plans_project_start
@@ -90,7 +70,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_measurements (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_measurements_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_measurements_price_currency_currency FOREIGN KEY (price_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_measurements_unique UNIQUE (project_key, owner_sub, measured_at, coins_total)
 );

@@ -111,8 +90,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_measurement_rates (
    provider VARCHAR(32) NOT NULL DEFAULT 'derived',
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_measurement_rates_measurement FOREIGN KEY (measurement_id) REFERENCES miningcheck_measurements(id) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_measurement_rates_base_currency_currency FOREIGN KEY (base_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_measurement_rates_quote_currency_currency FOREIGN KEY (quote_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_measurement_rate_pair UNIQUE (measurement_id, base_currency, quote_currency)
 );

@@ -129,8 +106,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_payouts (
    note TEXT,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_payouts_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_payouts_payout_currency_currency FOREIGN KEY (payout_currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_payouts_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE
 );

 CREATE INDEX IF NOT EXISTS idx_miningcheck_payouts_project_payout_at
@@ -153,8 +129,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_miner_offers (
    is_active BOOLEAN NOT NULL DEFAULT TRUE,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_miner_offers_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_miner_offers_base_price_currency_currency FOREIGN KEY (base_price_currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_miner_offers_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE
 );

 CREATE TABLE IF NOT EXISTS miningcheck_targets (
@@ -170,7 +145,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_targets (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_targets_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_targets_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT fk_mining_targets_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL,
    CONSTRAINT uq_mining_targets_project_label UNIQUE (project_key, owner_sub, label)
 );
@@ -215,9 +189,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_purchased_miners (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_purchased_miners_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_purchased_miners_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL,
-    CONSTRAINT fk_mining_purchased_miners_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_purchased_miners_reference_price_currency_currency FOREIGN KEY (reference_price_currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_purchased_miners_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL
 );

 CREATE TABLE IF NOT EXISTS miningcheck_fx_fetches (
@@ -225,8 +197,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_fx_fetches (
    provider VARCHAR(32) NOT NULL DEFAULT 'currencyapi',
    base_currency VARCHAR(10) NOT NULL,
    rate_date DATE NOT NULL,
-    fetched_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_fx_fetches_base_currency_currency FOREIGN KEY (base_currency) REFERENCES miningcheck_currencies(code)
+    fetched_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
 );

 CREATE INDEX IF NOT EXISTS idx_miningcheck_fx_fetches_base_fetched
@@ -237,8 +208,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_fx_rates (
    fetch_id BIGINT NOT NULL,
    currency_code VARCHAR(10) NOT NULL,
    current_value NUMERIC(20,10) NOT NULL,
-    CONSTRAINT fk_mining_fx_rates_fetch FOREIGN KEY (fetch_id) REFERENCES miningcheck_fx_fetches(id) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_fx_rates_currency_code_currency FOREIGN KEY (currency_code) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_fx_rates_fetch FOREIGN KEY (fetch_id) REFERENCES miningcheck_fx_fetches(id) ON DELETE CASCADE
 );

 CREATE INDEX IF NOT EXISTS idx_miningcheck_fx_rates_fetch
--- a/modules/mining-checker/sql/schema.sql
+++ b/modules/mining-checker/sql/schema.sql
@@ -5,22 +5,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_projects (
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
 );

-CREATE TABLE IF NOT EXISTS miningcheck_currencies (
-    code VARCHAR(10) NOT NULL PRIMARY KEY,
-    name VARCHAR(64) NOT NULL,
-    symbol VARCHAR(8) NULL,
-    is_active TINYINT(1) NOT NULL DEFAULT 1,
-    is_crypto TINYINT(1) NOT NULL DEFAULT 0,
-    sort_order INT NOT NULL DEFAULT 0
-);
-
-CREATE TABLE IF NOT EXISTS miningcheck_currency_aliases (
-    alias_code VARCHAR(10) NOT NULL PRIMARY KEY,
-    currency_code VARCHAR(10) NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_currency_aliases_currency FOREIGN KEY (currency_code) REFERENCES miningcheck_currencies(code) ON DELETE CASCADE
-);
-
 CREATE TABLE IF NOT EXISTS miningcheck_settings (
    id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
    project_key VARCHAR(64) NOT NULL,
@@ -38,9 +22,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_settings (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_settings_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_settings_daily_cost_currency_currency FOREIGN KEY (daily_cost_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_settings_report_currency_currency FOREIGN KEY (report_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_settings_crypto_currency_currency FOREIGN KEY (crypto_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_settings_project UNIQUE (project_key)
 );

@@ -63,8 +44,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_cost_plans (
    is_active TINYINT(1) NOT NULL DEFAULT 1,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_cost_plans_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_cost_plans_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_cost_plans_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE
 );

 CREATE INDEX idx_miningcheck_cost_plans_project_start
@@ -87,7 +67,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_measurements (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_measurements_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_measurements_price_currency_currency FOREIGN KEY (price_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_measurements_unique UNIQUE (project_key, measured_at, coins_total)
 );

@@ -107,8 +86,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_measurement_rates (
    provider VARCHAR(32) NOT NULL DEFAULT 'derived',
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_measurement_rates_measurement FOREIGN KEY (measurement_id) REFERENCES miningcheck_measurements(id) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_measurement_rates_base_currency_currency FOREIGN KEY (base_currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_measurement_rates_quote_currency_currency FOREIGN KEY (quote_currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT uq_mining_measurement_rate_pair UNIQUE (measurement_id, base_currency, quote_currency),
    KEY idx_miningcheck_measurement_rates_project_measurement (project_key, measurement_id)
 );
@@ -123,7 +100,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_payouts (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_payouts_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_payouts_payout_currency_currency FOREIGN KEY (payout_currency) REFERENCES miningcheck_currencies(code),
    KEY idx_miningcheck_payouts_project_payout_at (project_key, payout_at)
 );

@@ -144,8 +120,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_miner_offers (
    is_active TINYINT(1) NOT NULL DEFAULT 1,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_miner_offers_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_miner_offers_base_price_currency_currency FOREIGN KEY (base_price_currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_miner_offers_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE
 );

 CREATE TABLE IF NOT EXISTS miningcheck_targets (
@@ -160,7 +135,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_targets (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_targets_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_targets_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code),
    CONSTRAINT fk_mining_targets_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL,
    CONSTRAINT uq_mining_targets_project_label UNIQUE (project_key, label)
 );
@@ -203,9 +177,7 @@ CREATE TABLE IF NOT EXISTS miningcheck_purchased_miners (
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CONSTRAINT fk_mining_purchased_miners_project FOREIGN KEY (project_key) REFERENCES miningcheck_projects(project_key) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_purchased_miners_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL,
-    CONSTRAINT fk_mining_purchased_miners_currency_currency FOREIGN KEY (currency) REFERENCES miningcheck_currencies(code),
-    CONSTRAINT fk_mining_purchased_miners_reference_price_currency_currency FOREIGN KEY (reference_price_currency) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_purchased_miners_offer FOREIGN KEY (miner_offer_id) REFERENCES miningcheck_miner_offers(id) ON DELETE SET NULL
 );

 CREATE TABLE IF NOT EXISTS miningcheck_fx_fetches (
@@ -214,7 +186,6 @@ CREATE TABLE IF NOT EXISTS miningcheck_fx_fetches (
    base_currency VARCHAR(10) NOT NULL,
    rate_date DATE NOT NULL,
    fetched_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    CONSTRAINT fk_mining_fx_fetches_base_currency_currency FOREIGN KEY (base_currency) REFERENCES miningcheck_currencies(code),
    KEY idx_miningcheck_fx_fetches_base_fetched (base_currency, fetched_at)
 );

@@ -225,6 +196,5 @@ CREATE TABLE IF NOT EXISTS miningcheck_fx_rates (
    current_value DECIMAL(20,10) NOT NULL,
    KEY idx_miningcheck_fx_rates_fetch (fetch_id),
    KEY idx_miningcheck_fx_rates_currency (currency_code),
-    CONSTRAINT fk_mining_fx_rates_fetch FOREIGN KEY (fetch_id) REFERENCES miningcheck_fx_fetches(id) ON DELETE CASCADE,
-    CONSTRAINT fk_mining_fx_rates_currency_code_currency FOREIGN KEY (currency_code) REFERENCES miningcheck_currencies(code)
+    CONSTRAINT fk_mining_fx_rates_fetch FOREIGN KEY (fetch_id) REFERENCES miningcheck_fx_fetches(id) ON DELETE CASCADE
 );
--- a/modules/mining-checker/sql/seed.sql
+++ b/modules/mining-checker/sql/seed.sql
@@ -2,22 +2,6 @@ INSERT INTO miningcheck_projects (project_key, project_name)
 VALUES ('doge-main', 'DOGE Mining Main')
 ON DUPLICATE KEY UPDATE project_name = VALUES(project_name);

-INSERT INTO miningcheck_currencies (code, name, symbol, is_active, sort_order)
-VALUES
-    ('EUR', 'Euro', 'EUR', 1, 10),
-    ('USD', 'US-Dollar', 'USD', 1, 20),
-    ('DOGE', 'Dogecoin', 'DOGE', 1, 100),
-    ('BTC', 'Bitcoin', 'BTC', 1, 110),
-    ('ETH', 'Ethereum', 'ETH', 1, 120),
-    ('LTC', 'Litecoin', 'LTC', 1, 130),
-    ('USDT', 'Tether', 'USDT', 1, 140),
-    ('USDC', 'USD Coin', 'USDC', 1, 150)
-ON DUPLICATE KEY UPDATE
-    name = VALUES(name),
-    symbol = VALUES(symbol),
-    is_active = VALUES(is_active),
-    sort_order = VALUES(sort_order);
-
 INSERT INTO miningcheck_settings (
    project_key,
    baseline_measured_at,
--- a/modules/mining-checker/src/Api/Router.php
+++ b/modules/mining-checker/src/Api/Router.php
@@ -151,14 +151,6 @@ final class Router
                $this->respond(['data' => $this->probeFxRates(Http::input())], 200);
            }

-            if ($resource === 'currencies-refresh' && $method === 'POST') {
-                $this->respond(['data' => $this->refreshCurrencies()], 201);
-            }
-
-            if ($resource === 'currencies-probe' && $method === 'POST') {
-                $this->respond(['data' => $this->probeCurrencies()], 200);
-            }
-
            if ($resource === 'fx-history' && $method === 'GET') {
                $this->respond(['data' => $this->fxHistory()]);
            }
@@ -297,18 +289,6 @@ final class Router
                Http::json(['data' => $this->purchaseMiner($projectKey, (int) $matches[1], Http::input())], 201);
            }

-            if ($resource === 'currencies' && $method === 'GET') {
-                Http::json(['data' => $this->currencies()]);
-            }
-
-            if ($resource === 'currency-aliases' && $method === 'GET') {
-                Http::json(['data' => $this->currencyAliases()]);
-            }
-
-            if ($resource === 'currency-aliases' && $method === 'POST') {
-                Http::json(['data' => $this->saveCurrencyAlias(Http::input())], 201);
-            }
-
            throw new ApiException('Ressource nicht gefunden.', 404, ['resource' => $resource, 'method' => $method]);
        } catch (ApiException $exception) {
            $this->debug->add('router.handle.api_exception', [
@@ -513,8 +493,6 @@ final class Router
        $backup = [
            'project' => $this->repository()->getProject($projectKey),
            'settings' => $this->safeRead(fn () => $this->repository()->getSettings($projectKey)),
-            'currencies' => $this->safeRead(fn () => $this->repository()->listCurrencies(), []),
-            'currency_aliases' => $this->safeRead(fn () => $this->repository()->listCurrencyAliases(), []),
            'cost_plans' => $this->safeRead(fn () => $this->repository()->listCostPlans($projectKey), []),
            'measurements' => $this->safeRead(fn () => $this->repository()->listAllMeasurements($projectKey), []),
            'measurement_rates' => $this->safeRead(fn () => $this->repository()->listMeasurementRates($projectKey), []),
@@ -538,23 +516,6 @@ final class Router
        $projectName = is_array($backup['project']) ? ($backup['project']['project_name'] ?? null) : null;
        $this->repository()->ensureProject($projectKey, is_string($projectName) ? $projectName : null);

-        foreach ($backup['currencies'] as $currency) {
-            $this->repository()->saveCurrency([
-                'code' => $currency['code'],
-                'name' => $currency['name'],
-                'symbol' => $currency['symbol'] ?? null,
-                'is_active' => !empty($currency['is_active']) ? 1 : 0,
-                'is_crypto' => !empty($currency['is_crypto']) ? 1 : 0,
-                'sort_order' => (int) ($currency['sort_order'] ?? 0),
-            ]);
-        }
-
-        foreach ($backup['currency_aliases'] as $alias) {
-            if (!empty($alias['alias_code']) && !empty($alias['currency_code'])) {
-                $this->repository()->saveCurrencyAlias((string) $alias['alias_code'], (string) $alias['currency_code']);
-            }
-        }
-
        if (is_array($backup['settings'])) {
            $this->repository()->saveSettings($projectKey, [
                'baseline_measured_at' => $backup['settings']['baseline_measured_at'],
@@ -750,7 +711,6 @@ final class Router
                'targets' => count($backup['targets']),
                'dashboards' => count($backup['dashboards']),
                'miner_offers' => count($backup['miner_offers']),
-                'currency_aliases' => count($backup['currency_aliases']),
                'fx_rates' => $restoredFxRates,
            ],
        ]);
@@ -795,20 +755,6 @@ final class Router
        return $this->fx()->probeLatestRates($base);
    }

-    private function refreshCurrencies(): array
-    {
-        $result = $this->fx()->refreshCurrencyCatalog();
-        $synced = $this->syncLocalCurrencyCatalogFromFxRates(true);
-        return $result + [
-            'local_catalog_synced' => count($synced),
-        ];
-    }
-
-    private function probeCurrencies(): array
-    {
-        return $this->fx()->probeCurrencyCatalog();
-    }
-
    private function fxHistory(): array
    {
        if (!modules()->isEnabled('fx-rates') || !modules()->hasFunction('fx-rates', 'recent_fetches')) {
@@ -1293,7 +1239,7 @@ final class Router

    private function bootstrapMeasurements(string $projectKey, array $settings, string $view): array
    {
-        if (in_array($view, ['settings', 'currencies', 'dashboards'], true)) {
+        if (in_array($view, ['settings', 'dashboards'], true)) {
            return [];
        }

@@ -1373,7 +1319,7 @@ final class Router
    private function normalizeBootstrapView(string $view): string
    {
        $normalized = trim(strtolower($view));
-        return in_array($normalized, ['overview', 'measurements', 'dashboards', 'currencies', 'mining', 'settings'], true)
+        return in_array($normalized, ['overview', 'measurements', 'dashboards', 'mining', 'settings'], true)
            ? $normalized
            : 'overview';
    }
@@ -1475,22 +1421,12 @@ final class Router
            return;
        }

-        $knownCodes = array_map(
-            static fn (array $currency): string => strtoupper((string) ($currency['code'] ?? '')),
-            $this->currencies()
+        if ($this->currencyCatalogEntry($priceCurrency) === null) {
+            throw new ApiException(
+                'Waehrung ist im fx-rates Katalog nicht vorhanden.',
+                422,
+                ['currency' => $priceCurrency]
            );
-
-        if (in_array($priceCurrency, $knownCodes, true)) {
-            return;
-        }
-
-        $matched = $this->currencyCatalogEntry($priceCurrency);
-        $this->repository()->ensureCurrencyCode($priceCurrency, $matched['name'] ?? $priceCurrency);
-
-        try {
-            $this->refreshCurrencies();
-        } catch (\Throwable) {
-            // Measurement save must not fail because the external currency sync is unavailable.
        }
    }

@@ -1580,25 +1516,7 @@ final class Router

    private function currencies(): array
    {
-        $catalog = $this->syncLocalCurrencyCatalogFromFxRates();
-        return $catalog !== [] ? $catalog : $this->repository()->listCurrencies();
-    }
-
-    private function currencyAliases(): array
-    {
-        return $this->repository()->listCurrencyAliases();
-    }
-
-    private function saveCurrencyAlias(array $input): array
-    {
-        $aliasCode = strtoupper(trim((string) ($input['alias_code'] ?? '')));
-        $currencyCode = $this->requiredCurrency($input['currency_code'] ?? null, 'currency_code');
-
-        if (!preg_match('/^[A-Z0-9]{3,10}$/', $aliasCode)) {
-            throw new ApiException('Feld alias_code muss ein gueltiger Waehrungscode sein.', 422);
-        }
-
-        return $this->repository()->saveCurrencyAlias($aliasCode, $currencyCode);
+        return $this->currencyCatalog();
    }

    private function minerOffers(string $projectKey): array
@@ -1945,24 +1863,18 @@ final class Router
            throw new ApiException("Feld {$field} muss ein gueltiger Waehrungscode sein.", 422);
        }

-        $resolved = $this->repository()->resolveCurrencyCode($currency);
-        if ($resolved !== null && !empty($resolved['code'])) {
-            return (string) $resolved['code'];
-        }
-
        $catalogEntry = $this->currencyCatalogEntry($currency);
        if (is_array($catalogEntry)) {
-            $this->repository()->ensureCurrencyCode($currency, (string) ($catalogEntry['name'] ?? $currency));
            return $currency;
        }

        throw new ApiException(
-            "Feld {$field} verweist auf keinen vorhandenen Waehrungsrecord.",
+            "Feld {$field} verweist auf keinen vorhandenen fx-rates Waehrungscode.",
            422,
            [
                'field' => $field,
                'missing_currency' => $currency,
-                'hint' => 'Synchronisiere zuerst den Waehrungskatalog aus fx-rates oder hinterlege einen Alias auf einen bestehenden Waehrungsrecord.',
+                'hint' => 'Synchronisiere zuerst den Waehrungskatalog im Modul fx-rates.',
                'available_currencies' => array_slice(array_map(
                    static fn (array $item): string => (string) ($item['code'] ?? ''),
                    $this->currencies()
@@ -1981,10 +1893,15 @@ final class Router

    private function assertCurrencyType(string $code, bool $expectedCrypto, string $field): void
    {
-        $this->ensureLocalCurrencyRecord($code);
-        $resolved = $this->repository()->resolveCurrencyCode($code);
-        $currency = is_array($resolved) ? ($resolved['currency'] ?? null) : null;
-        $isCrypto = !empty($currency['is_crypto']);
+        if ($this->currencyCatalogEntry($code) === null) {
+            throw new ApiException(
+                "Feld {$field} verweist auf keinen vorhandenen fx-rates Waehrungscode.",
+                422,
+                ['field' => $field, 'currency' => $code]
+            );
+        }
+
+        $isCrypto = $this->isCryptoCurrencyCode($code);
        if ($isCrypto !== $expectedCrypto) {
            throw new ApiException(
                $expectedCrypto
@@ -2248,22 +2165,6 @@ final class Router
        return null;
    }

-    private function syncLocalCurrencyCatalogFromFxRates(bool $forceRefresh = false): array
-    {
-        if ($forceRefresh) {
-            $this->fxRatesSettingsCache = null;
-            $this->currencyCatalogCache = null;
-        }
-
-        $catalog = $this->currencyCatalog();
-        if ($catalog === []) {
-            return [];
-        }
-
-        $this->repository()->saveCurrencies($catalog);
-        return $this->repository()->listCurrencies();
-    }
-
    private function syncFxRatesPreferredCurrencies(array $preferredCurrencies): void
    {
        if (!modules()->isEnabled('fx-rates') || !modules()->hasFunction('fx-rates', 'save_runtime_settings')) {
@@ -2274,22 +2175,7 @@ final class Router
            'preferred_currencies' => $preferredCurrencies,
        ]);
        $this->fxRatesSettingsCache = null;
-    }
-
-    private function ensureLocalCurrencyRecord(string $code): void
-    {
-        $resolved = $this->repository()->resolveCurrencyCode($code);
-        if ($resolved !== null) {
-            return;
-        }
-
-        $catalogEntry = $this->currencyCatalogEntry($code);
-        if ($catalogEntry !== null) {
-            $this->repository()->saveCurrency($catalogEntry);
-            return;
-        }
-
-        $this->repository()->ensureCurrencyCode($code, $code);
+        $this->currencyCatalogCache = null;
    }

    private function isCryptoCurrencyCode(string $code): bool
--- a/modules/mining-checker/src/Domain/FxService.php
+++ b/modules/mining-checker/src/Domain/FxService.php
@@ -310,13 +310,6 @@ final class FxService
            return $shared->refreshCurrencyCatalog();
        }

-        if ($this->repository === null) {
-            return [
-                'synced_count' => 0,
-                'currencies' => [],
-            ];
-        }
-
        $payload = $this->fetchCurrenciesPayload();
        $items = is_array($payload['currencies'] ?? null) ? $payload['currencies'] : [];
        if ($items === []) {
@@ -349,8 +342,6 @@ final class FxService
            $sortOrder++;
        }

-        $this->repository->saveCurrencies($synced);
-
        usort($synced, static function (array $left, array $right): int {
            return [$left['sort_order'], $left['code']] <=> [$right['sort_order'], $right['code']];
        });
@@ -796,18 +787,9 @@ final class FxService

    private function defaultCurrencies(): array
    {
-        if ($this->repository === null) {
        return ['EUR', 'USD'];
    }

-        try {
-            $currencies = $this->repository->listActiveFiatCurrencies();
-            return array_map(static fn (array $currency): string => (string) $currency['code'], $currencies);
-        } catch (\Throwable) {
-            return ['EUR', 'USD'];
-        }
-    }
-
    private function normalizeRateDate(mixed $value): string
    {
        if (is_int($value) || is_float($value) || (is_string($value) && ctype_digit(trim($value)))) {
--- a/modules/mining-checker/src/Domain/SeedImporter.php
+++ b/modules/mining-checker/src/Domain/SeedImporter.php
@@ -22,9 +22,6 @@ final class SeedImporter
        }

        $this->repository->ensureProject($projectKey, SeedData::projectName());
-        foreach (SeedData::currencies() as $currency) {
-            $this->repository->saveCurrency($currency);
-        }
        $this->repository->saveSettings($projectKey, SeedData::settings());

        $insertedMeasurements = 0;
@@ -60,7 +57,6 @@ final class SeedImporter
            'historical_rows_total' => count(SeedData::measurements()),
            'targets_synced' => $targetCount,
            'dashboards_synced' => $dashboardCount,
-            'currencies_synced' => count(SeedData::currencies()),
        ];
    }
 }
--- a/modules/mining-checker/src/Infrastructure/MiningRepository.php
+++ b/modules/mining-checker/src/Infrastructure/MiningRepository.php
@@ -111,231 +111,6 @@ final class MiningRepository
        ]);
    }

-    public function listCurrencies(): array
-    {
-        $this->debug?->add('db.listCurrencies.start');
-        $stmt = $this->pdo->query(
-            'SELECT * FROM ' . $this->table('currencies') . ' WHERE ' . ($this->driver === 'pgsql' ? 'is_active = TRUE' : 'is_active = 1') . ' ORDER BY sort_order ASC, code ASC'
-        );
-        $rows = $this->normalizeRows($stmt->fetchAll() ?: []);
-        $this->debug?->add('db.listCurrencies.end', ['rows' => count($rows)]);
-        return $rows;
-    }
-
-    public function listCurrencyAliases(): array
-    {
-        $stmt = $this->pdo->query(
-            'SELECT
-                a.alias_code,
-                a.currency_code,
-                c.name AS currency_name,
-                a.created_at
-             FROM ' . $this->table('currency_aliases') . ' a
-             INNER JOIN ' . $this->table('currencies') . ' c ON c.code = a.currency_code
-             ORDER BY a.alias_code ASC'
-        );
-        return $this->normalizeRows($stmt->fetchAll() ?: []);
-    }
-
-    public function resolveCurrencyCode(string $code): ?array
-    {
-        $normalizedCode = strtoupper(trim($code));
-        if ($normalizedCode === '') {
-            return null;
-        }
-
-        $currencyStmt = $this->pdo->prepare('SELECT * FROM ' . $this->table('currencies') . ' WHERE code = :code LIMIT 1');
-        $currencyStmt->execute(['code' => $normalizedCode]);
-        $currency = $currencyStmt->fetch();
-        if (is_array($currency)) {
-            return [
-                'input_code' => $normalizedCode,
-                'code' => $normalizedCode,
-                'matched_via' => 'code',
-                'currency' => $this->normalizeRow($currency),
-            ];
-        }
-
-        if (!$this->tableExists('currency_aliases')) {
-            return null;
-        }
-
-        $aliasStmt = $this->pdo->prepare(
-            'SELECT
-                a.alias_code,
-                a.currency_code,
-                c.name AS currency_name,
-                c.symbol AS currency_symbol,
-                c.is_active,
-                c.sort_order
-             FROM ' . $this->table('currency_aliases') . ' a
-             INNER JOIN ' . $this->table('currencies') . ' c ON c.code = a.currency_code
-             WHERE a.alias_code = :alias_code
-             LIMIT 1'
-        );
-        $aliasStmt->execute(['alias_code' => $normalizedCode]);
-        $alias = $aliasStmt->fetch();
-        if (!is_array($alias)) {
-            return null;
-        }
-
-        return [
-            'input_code' => $normalizedCode,
-            'code' => (string) $alias['currency_code'],
-            'matched_via' => 'alias',
-            'alias_code' => (string) $alias['alias_code'],
-            'currency' => $this->normalizeRow([
-                'code' => $alias['currency_code'],
-                'name' => $alias['currency_name'],
-                'symbol' => $alias['currency_symbol'] ?? null,
-                'is_active' => $alias['is_active'] ?? 1,
-                'sort_order' => $alias['sort_order'] ?? 1000,
-            ]),
-        ];
-    }
-
-    public function saveCurrencyAlias(string $aliasCode, string $currencyCode): array
-    {
-        $normalizedAlias = strtoupper(trim($aliasCode));
-        $normalizedCurrency = strtoupper(trim($currencyCode));
-
-        $stmt = $this->pdo->prepare($this->driver === 'pgsql'
-            ? 'INSERT INTO ' . $this->table('currency_aliases') . ' (alias_code, currency_code)
-               VALUES (:alias_code, :currency_code)
-               ON CONFLICT (alias_code) DO UPDATE SET currency_code = EXCLUDED.currency_code
-               RETURNING *'
-            : 'INSERT INTO ' . $this->table('currency_aliases') . ' (alias_code, currency_code)
-               VALUES (:alias_code, :currency_code)
-               ON DUPLICATE KEY UPDATE currency_code = VALUES(currency_code)'
-        );
-        $stmt->execute([
-            'alias_code' => $normalizedAlias,
-            'currency_code' => $normalizedCurrency,
-        ]);
-
-        if ($this->driver === 'pgsql') {
-            $row = $stmt->fetch();
-            return is_array($row) ? $this->normalizeRow($row) : ['alias_code' => $normalizedAlias, 'currency_code' => $normalizedCurrency];
-        }
-
-        return ['alias_code' => $normalizedAlias, 'currency_code' => $normalizedCurrency];
-    }
-
-    public function saveCurrency(array $currency): void
-    {
-        $this->debug?->add('db.saveCurrency.start', ['code' => $currency['code'] ?? null]);
-        $stmt = $this->pdo->prepare($this->driver === 'pgsql'
-            ? 'INSERT INTO ' . $this->table('currencies') . ' (code, name, symbol, is_active, is_crypto, sort_order)
-               VALUES (:code, :name, :symbol, :is_active, :is_crypto, :sort_order)
-               ON CONFLICT (code) DO UPDATE SET
-                  name = EXCLUDED.name,
-                  symbol = EXCLUDED.symbol,
-                  is_active = EXCLUDED.is_active,
-                  is_crypto = EXCLUDED.is_crypto,
-                  sort_order = EXCLUDED.sort_order'
-            : 'INSERT INTO ' . $this->table('currencies') . ' (code, name, symbol, is_active, is_crypto, sort_order)
-               VALUES (:code, :name, :symbol, :is_active, :is_crypto, :sort_order)
-               ON DUPLICATE KEY UPDATE
-                  name = VALUES(name),
-                  symbol = VALUES(symbol),
-                  is_active = VALUES(is_active),
-                  is_crypto = VALUES(is_crypto),
-                  sort_order = VALUES(sort_order)'
-        );
-        $stmt->execute([
-            'code' => $currency['code'],
-            'name' => $currency['name'],
-            'symbol' => $currency['symbol'],
-            'is_active' => $currency['is_active'],
-            'is_crypto' => $currency['is_crypto'] ?? 0,
-            'sort_order' => $currency['sort_order'],
-        ]);
-        $this->debug?->add('db.saveCurrency.end', ['code' => $currency['code'] ?? null]);
-    }
-
-    public function saveCurrencies(array $currencies): int
-    {
-        if ($currencies === []) {
-            return 0;
-        }
-
-        $this->debug?->add('db.saveCurrencies.start', ['count' => count($currencies)]);
-
-        $statement = $this->pdo->prepare($this->driver === 'pgsql'
-            ? 'INSERT INTO ' . $this->table('currencies') . ' (code, name, symbol, is_active, is_crypto, sort_order)
-               VALUES (:code, :name, :symbol, :is_active, :is_crypto, :sort_order)
-               ON CONFLICT (code) DO UPDATE SET
-                  name = EXCLUDED.name,
-                  symbol = EXCLUDED.symbol,
-                  is_active = EXCLUDED.is_active,
-                  is_crypto = EXCLUDED.is_crypto,
-                  sort_order = EXCLUDED.sort_order'
-            : 'INSERT INTO ' . $this->table('currencies') . ' (code, name, symbol, is_active, is_crypto, sort_order)
-               VALUES (:code, :name, :symbol, :is_active, :is_crypto, :sort_order)
-               ON DUPLICATE KEY UPDATE
-                  name = VALUES(name),
-                  symbol = VALUES(symbol),
-                  is_active = VALUES(is_active),
-                  is_crypto = VALUES(is_crypto),
-                  sort_order = VALUES(sort_order)'
-        );
-
-        $count = 0;
-        $startedTransaction = false;
-        if (!$this->pdo->inTransaction()) {
-            $this->pdo->beginTransaction();
-            $startedTransaction = true;
-        }
-
-        try {
-            foreach ($currencies as $currency) {
-                if (!is_array($currency) || empty($currency['code'])) {
-                    continue;
-                }
-
-                $statement->execute([
-                    'code' => $currency['code'],
-                    'name' => $currency['name'] ?? $currency['code'],
-                    'symbol' => $currency['symbol'] ?? $currency['code'],
-                    'is_active' => $currency['is_active'] ?? 1,
-                    'is_crypto' => $currency['is_crypto'] ?? 0,
-                    'sort_order' => $currency['sort_order'] ?? 1000,
-                ]);
-                $count++;
-            }
-
-            if ($startedTransaction) {
-                $this->pdo->commit();
-            }
-            $this->debug?->add('db.saveCurrencies.end', ['count' => $count]);
-        } catch (\Throwable $exception) {
-            if ($startedTransaction && $this->pdo->inTransaction()) {
-                $this->pdo->rollBack();
-            }
-            $this->debug?->add('db.saveCurrencies.error', ['message' => $exception->getMessage()]);
-            throw $exception;
-        }
-
-        return $count;
-    }
-
-    public function ensureCurrencyCode(string $code, ?string $name = null): void
-    {
-        $normalizedCode = strtoupper(trim($code));
-        if ($normalizedCode === '') {
-            return;
-        }
-
-        $this->saveCurrency([
-            'code' => substr($normalizedCode, 0, 10),
-            'name' => $name !== null && trim($name) !== '' ? trim($name) : $normalizedCode,
-            'symbol' => substr($normalizedCode, 0, 8),
-            'is_active' => 1,
-            'is_crypto' => $this->isCryptoCode($normalizedCode) ? 1 : 0,
-            'sort_order' => 1000,
-        ]);
-    }
-
    public function tableExists(string $logicalName): bool
    {
        $tableName = $this->table($logicalName);
@@ -1099,32 +874,6 @@ final class MiningRepository
            return ['fetch' => null, 'rates' => []];
        }

-        $currenciesToEnsure = [
-            [
-                'code' => substr($baseCurrency, 0, 10),
-                'name' => $baseCurrency,
-                'symbol' => substr($baseCurrency, 0, 8),
-                'is_active' => 1,
-                'is_crypto' => $this->isCryptoCode($baseCurrency) ? 1 : 0,
-                'sort_order' => 1000,
-            ],
-        ];
-        foreach (array_keys($rates) as $currencyCode) {
-            $normalizedCurrencyCode = strtoupper(trim((string) $currencyCode));
-            if ($normalizedCurrencyCode === '') {
-                continue;
-            }
-            $currenciesToEnsure[] = [
-                'code' => substr($normalizedCurrencyCode, 0, 10),
-                'name' => $normalizedCurrencyCode,
-                'symbol' => substr($normalizedCurrencyCode, 0, 8),
-                'is_active' => 1,
-                'is_crypto' => $this->isCryptoCode($normalizedCurrencyCode) ? 1 : 0,
-                'sort_order' => 1000,
-            ];
-        }
-        $this->saveCurrencies($currenciesToEnsure);
-
        if ($this->driver === 'pgsql') {
            $fetchStmt = $this->pdo->prepare(
                'INSERT INTO ' . $this->table('fx_fetches') . ' (
@@ -1247,16 +996,6 @@ final class MiningRepository
        $provider = trim($provider) !== '' ? trim($provider) : 'currencyapi';
        $fetchedAt = $this->currentUtcTimestamp();
        $normalizedRates = [];
-        $currenciesToEnsure = [
-            [
-                'code' => substr($baseCurrency, 0, 10),
-                'name' => $baseCurrency,
-                'symbol' => substr($baseCurrency, 0, 8),
-                'is_active' => 1,
-                'is_crypto' => $this->isCryptoCode($baseCurrency) ? 1 : 0,
-                'sort_order' => 1000,
-            ],
-        ];

        foreach ($rates as $currencyCode => $rate) {
            if (!is_numeric($rate)) {
@@ -1269,14 +1008,6 @@ final class MiningRepository
            }

            $normalizedRates[$normalizedCurrencyCode] = (float) $rate;
-            $currenciesToEnsure[] = [
-                'code' => substr($normalizedCurrencyCode, 0, 10),
-                'name' => $normalizedCurrencyCode,
-                'symbol' => substr($normalizedCurrencyCode, 0, 8),
-                'is_active' => 1,
-                'is_crypto' => $this->isCryptoCode($normalizedCurrencyCode) ? 1 : 0,
-                'sort_order' => 1000,
-            ];
        }

        $this->debug?->add('db.saveFxFetch.start', [
@@ -1304,14 +1035,6 @@ final class MiningRepository
        }

        try {
-            $this->debug?->add('db.saveFxFetch.saveCurrencies.start', [
-                'currency_count' => count($currenciesToEnsure),
-            ]);
-            $this->saveCurrencies($currenciesToEnsure);
-            $this->debug?->add('db.saveFxFetch.saveCurrencies.end', [
-                'currency_count' => count($currenciesToEnsure),
-            ]);
-
            if ($this->driver === 'pgsql') {
                $this->debug?->add('db.saveFxFetch.insertFetch.start', [
                    'driver' => $this->driver,
@@ -1459,21 +1182,10 @@ final class MiningRepository
        }
    }

-    public function listActiveFiatCurrencies(): array
-    {
-        $currencies = $this->listCurrencies();
-
-        return array_values(array_filter($currencies, static function (array $currency): bool {
-            $code = strtoupper((string) ($currency['code'] ?? ''));
-            return $code !== '' && empty($currency['is_crypto']);
-        }));
-    }
-
    private function table(string $logicalName): string
    {
        return match ($logicalName) {
            'projects' => $this->prefix . 'projects',
-            'currencies' => $this->prefix . 'currencies',
            'settings' => $this->prefix . 'settings',
            'cost_plans' => $this->prefix . 'cost_plans',
            'measurements' => $this->prefix . 'measurements',
--- a/modules/mining-checker/src/Infrastructure/SchemaManager.php
+++ b/modules/mining-checker/src/Infrastructure/SchemaManager.php
@@ -213,18 +213,6 @@ final class SchemaManager
            $this->upgradeTargetOfferColumn();
            $applied[] = 'target_offer_column';
        }
-        if (!$this->tableExists($this->prefix . 'currency_aliases')) {
-            $this->ensureCurrencyAliasesTable();
-            $applied[] = 'currency_aliases_table';
-        }
-        if ($this->tableExists($this->prefix . 'currencies') && !$this->columnExists($this->prefix . 'currencies', 'is_crypto')) {
-            $this->upgradeCurrenciesClassificationColumns();
-            $applied[] = 'currency_classification';
-        }
-        if ($this->tableExists($this->prefix . 'currencies')) {
-            $this->ensureCurrencyForeignKeys();
-            $applied[] = 'currency_foreign_keys';
-        }
        if ($this->tableExists($this->prefix . 'miner_offers') && (
            !$this->columnExists($this->prefix . 'miner_offers', 'base_price_amount') ||
            !$this->columnExists($this->prefix . 'miner_offers', 'base_price_currency') ||
@@ -264,7 +252,6 @@ final class SchemaManager
    {
        $coreTables = [
            $this->prefix . 'projects',
-            $this->prefix . 'currencies',
            $this->prefix . 'settings',
            $this->prefix . 'cost_plans',
            $this->prefix . 'measurements',
@@ -335,18 +322,6 @@ final class SchemaManager
            $this->upgradeTargetOfferColumn();
            $applied[] = 'target_offer_column';
        }
-        if (!$this->tableExists($this->prefix . 'currency_aliases')) {
-            $this->ensureCurrencyAliasesTable();
-            $applied[] = 'currency_aliases_table';
-        }
-        if ($this->tableExists($this->prefix . 'currencies') && !$this->columnExists($this->prefix . 'currencies', 'is_crypto')) {
-            $this->upgradeCurrenciesClassificationColumns();
-            $applied[] = 'currency_classification';
-        }
-        if ($this->tableExists($this->prefix . 'currencies')) {
-            $this->ensureCurrencyForeignKeys();
-            $applied[] = 'currency_foreign_keys';
-        }
        if ($this->tableExists($this->prefix . 'miner_offers') && (
            !$this->columnExists($this->prefix . 'miner_offers', 'base_price_amount') ||
            !$this->columnExists($this->prefix . 'miner_offers', 'base_price_currency') ||
@@ -788,36 +763,6 @@ final class SchemaManager
        $this->ensureMeasurementRatesTable();
        $this->ensurePayoutsTable();
        $this->ensureMinerTables();
-        $this->ensureCurrencyAliasesTable();
-    }
-
-    public function ensureCurrencyAliasesTable(): void
-    {
-        if ($this->tableExists($this->prefix . 'currency_aliases')) {
-            return;
-        }
-
-        $table = $this->prefix . 'currency_aliases';
-        $currencyTable = $this->prefix . 'currencies';
-        $statements = $this->driver === 'pgsql'
-            ? [
-                'CREATE TABLE IF NOT EXISTS ' . $table . ' (
-                    alias_code VARCHAR(10) PRIMARY KEY,
-                    currency_code VARCHAR(10) NOT NULL,
-                    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-                    CONSTRAINT fk_mining_currency_aliases_currency FOREIGN KEY (currency_code) REFERENCES ' . $currencyTable . '(code) ON DELETE CASCADE
-                )',
-            ]
-            : [
-                'CREATE TABLE IF NOT EXISTS `' . $table . '` (
-                    alias_code VARCHAR(10) NOT NULL PRIMARY KEY,
-                    currency_code VARCHAR(10) NOT NULL,
-                    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
-                    CONSTRAINT fk_mining_currency_aliases_currency FOREIGN KEY (currency_code) REFERENCES `' . $currencyTable . '`(code) ON DELETE CASCADE
-                )',
-            ];
-
-        $this->executeUpgradeStatements($statements, 'Schema-Upgrade fuer Waehrungs-Aliase fehlgeschlagen.');
    }

    public function ensureMeasurementRatesTable(): void
@@ -1361,7 +1306,6 @@ final class SchemaManager
    {
        return [
            $this->prefix . 'projects',
-            $this->prefix . 'currencies',
            $this->prefix . 'settings',
            $this->prefix . 'cost_plans',
            $this->prefix . 'measurements',
@@ -1379,7 +1323,6 @@ final class SchemaManager
            $this->prefix . 'payouts',
            $this->prefix . 'miner_offers',
            $this->prefix . 'purchased_miners',
-            $this->prefix . 'currency_aliases',
        ];
    }

@@ -1392,8 +1335,6 @@ final class SchemaManager
    {
        return [
            $this->prefix . 'projects',
-            $this->prefix . 'currencies',
-            $this->prefix . 'currency_aliases',
            $this->prefix . 'settings',
            $this->prefix . 'cost_plans',
            $this->prefix . 'measurements',