docs: add README, API reference, and architecture documentation

- README.md: project overview, features, quick start, API overview
- docs/API.md: full endpoint reference with examples
- docs/ARCHITECTURE.md: system diagram, DB schema, data pipeline, auth flow

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-03-18 22:30:53 +00:00
parent d269bc1ffb
commit fb6ea31100
3 changed files with 1992 additions and 468 deletions

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