- Remove unused datetime imports from openbb_service, market_service,
quantitative_service (now using obb_utils.days_ago)
- Remove unused variable 'maintains' in routes_sentiment
- Remove unused imports in test files
- Fix forward reference annotation in test helper
7 new endpoints under /api/v1/defi/ (all free, no API key):
- GET /defi/tvl/protocols - top DeFi protocols by TVL
- GET /defi/tvl/chains - chain TVL rankings
- GET /defi/tvl/{protocol} - single protocol TVL
- GET /defi/yields - top yield pools (filter by chain/project)
- GET /defi/stablecoins - stablecoin market data
- GET /defi/volumes/dexs - DEX volume overview
- GET /defi/fees - protocol fees/revenue overview
Data source: DefiLlama API (free, no key needed)
58 new tests (33 service + 25 route). All 561 tests passing.
