feat(alt-data): add optional Adanos sentiment feed

[alexander-schneider]

Summary

Add Adanos as an optional crypto sentiment source for the existing alt-data signal pipeline.

• polls the read-only Adanos crypto trending endpoint with X-API-Key
• feeds Adanos' numeric sentiment score directly into the existing market matcher instead of re-scoring it as keywords
• emits buzz, mention, trend, and bullish/bearish distribution metadata
• deduplicates unchanged snapshots and aborts or invalidates in-flight requests on shutdown
• defaults to a quota-safe three-hour interval (240 requests per 30-day month)
• remains disabled unless both ALT_DATA_ADANOS_ENABLED=true and ADANOS_API_KEY are configured

Users can create an API key at https://adanos.org/register. API documentation: https://api.adanos.org/docs.

Testing

• node --test --import tsx --import ./tests/helpers/test-setup.ts tests/unit/alt-data.test.ts (20 passed)
• git diff --check
• npm run typecheck reaches two existing dependency/Open-Prose errors (ox/tempo/KeyAuthorization.ts and src/extensions/open-prose/index.ts) and reports no Adanos-related errors
• Autoreview: clean, confidence 0.96