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Luca Sacchi Ricciardi b075ae47fe feat(services): T31 implement statistics aggregation service

Add statistics aggregation service with 4 core functions:
- get_summary(): Aggregates total requests, cost, tokens with avg cost
- get_by_model(): Groups stats by model with percentage calculations
- get_by_date(): Groups stats by date for time series data
- get_dashboard_data(): Combines all stats for dashboard view

Features:
- SQLAlchemy queries with ApiKey join for user filtering
- Decimal precision for all monetary values
- Period calculation and percentage breakdowns
- Top models extraction

Test: 11 unit tests covering all aggregation functions

2026-04-07 15:16:22 +02:00

.opencode

feat(setup): T01 create project directory structure

2026-04-07 09:44:41 +02:00

alembic

feat(migrations): T11 setup Alembic and initial schema migration

2026-04-07 11:14:45 +02:00

docs

feat(schemas): T17 add Pydantic auth schemas

2026-04-07 13:52:33 +02:00

export

feat(services): T31 implement statistics aggregation service