John Lightner dc27435ca1 M2 complete: Recommendation engine + similar shaders + tag affinities ... Feed ranking (anonymous users): - score * 0.6 + recency * 0.3 + random * 0.1 - Recency uses 72-hour half-life decay - 10% randomness prevents filter bubbles Feed ranking (authenticated users): - score * 0.5 + recency * 0.2 + tag_affinity * 0.2 + random * 0.1 - Tag affinity built from engagement history: - Upvoted shader tags: +1.0 per tag - Downvoted: -0.5 per tag - Dwell >10s: +0.3, >30s: +0.6 - Over-fetches 3x candidates, re-ranks with affinity, returns top N Similar shaders endpoint: - GET /api/v1/feed/similar/{shader_id} - Finds shaders with overlapping tags - Ranks by tag overlap count, breaks ties by score - MCP tool: get_similar_shaders Fix: PostgreSQL text[] && varchar[] type mismatch - Used type_coerce() instead of cast() for ARRAY overlap operator - Affects both shaders search-by-tags and similar-by-tags queries		2026-03-24 23:25:45 -05:00
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middleware	M2: MCP server live + hot score ranking	2026-03-24 22:56:03 -05:00
models	Versioning, drafts, resizable editor, My Shaders, 200 seed shaders	2026-03-24 22:00:10 -05:00
routers	M2 complete: Recommendation engine + similar shaders + tag affinities	2026-03-24 23:25:45 -05:00
schemas	Versioning, drafts, resizable editor, My Shaders, 200 seed shaders	2026-03-24 22:00:10 -05:00
services	Tracks B+C+D: Auth system, renderer, full frontend shell	2026-03-24 20:56:42 -05:00
worker	M0: Foundation scaffold — Docker Compose, DB schema, FastAPI app, all service stubs	2026-03-24 20:45:08 -05:00
__init__.py	M0: Foundation scaffold — Docker Compose, DB schema, FastAPI app, all service stubs	2026-03-24 20:45:08 -05:00
config.py	M0: Foundation scaffold — Docker Compose, DB schema, FastAPI app, all service stubs	2026-03-24 20:45:08 -05:00
database.py	M0: Foundation scaffold — Docker Compose, DB schema, FastAPI app, all service stubs	2026-03-24 20:45:08 -05:00
main.py	M0: Foundation scaffold — Docker Compose, DB schema, FastAPI app, all service stubs	2026-03-24 20:45:08 -05:00
redis.py	M0: Foundation scaffold — Docker Compose, DB schema, FastAPI app, all service stubs	2026-03-24 20:45:08 -05:00