Replace Prisma-based analytics with direct T-Bank API calls:
- GetPortfolio for expectedYield (real portfolio return)
- GetOperationsByCursor with pagination for full operation history
- Remove incorrect totalReturnPercent formula, use T-Bank expectedYield instead
- Add totalFees and totalTaxesPaid to BrokerAnalyticsDto and service
- Add GET /accounts/:accountId/portfolio/history endpoint with estimated v1 read-model
- Add categories query param to operations endpoint for filtering by category
- Update tests and module registration
- Add state filter (EXECUTED/null) to analytics query (spec compliance)
- Add service unit tests (11 tests) and controller test
- Add sync button to operations page with mutation hook
- Regenerate frontend types via codegen
- Update tasks.md marking all items complete
Backend: 114 tests, Frontend: 116 tests — all pass
