refactor!: support RUB only (WealthLedger/main#55)

Filter non-RUB data at ingest and collapse per-currency collections
into a single RUB Money. Drop currency from TbankPortfolioValuePoint,
remove NON_RUB_ACTIVITY and the screener currency filter.

BREAKING CHANGE: per-currency API fields replaced with single RUB Money.

test/tbank-read-baseline.e2e-spec.ts

@@ -114,7 +114,7 @@ describe('T-Bank persisted read budget', () => {
           (item) =>
             item.instrumentKind === 'INSTRUMENT_TYPE_SHARE' &&
             item.ticker.includes(query),
-        ),
+        ).map((item) => ({ uid: item.uid, ticker: item.ticker, name: item.name, isin: item.isin, instrumentKind: item.instrumentKind, classCode: item.classCode, apiTradeAvailableFlag: item.apiTradeAvailableFlag })),
       ),
     findBonds: (_token: string, query: string) =>
       counted(
@@ -123,7 +123,7 @@ describe('T-Bank persisted read budget', () => {
           (item) =>
             item.instrumentKind === 'INSTRUMENT_TYPE_BOND' &&
             item.ticker.includes(query),
-        ),
+        ).map((item) => ({ uid: item.uid, ticker: item.ticker, name: item.name, isin: item.isin, instrumentKind: item.instrumentKind, classCode: item.classCode, apiTradeAvailableFlag: item.apiTradeAvailableFlag })),
       ),
     getShare: (_token: string, uid: string) =>
       counted(
@@ -279,9 +279,9 @@ describe('T-Bank persisted read budget', () => {
               currentPrice: { currency: 'rub', units: '1000' },
               averagePositionPrice: { currency: 'rub', units: '900' },
             }],
-            totalsByCurrency: [{ currency: 'RUB', value: '1100' }],
-            cashBalances: [{ currency: 'RUB', value: '100' }],
-            structure: { currencies: [], unvaluedCategories: [] },
+            totals: { currency: 'RUB', value: '1100' },
+            cash: { currency: 'RUB', value: '100' },
+            structure: { totalValue: '1100', hasNegativeValues: false, categories: [], unvaluedCategories: [] },
           },
           fetchedAt: now,
         },