feat: add conversation persistence and context management layer

- SQLAlchemy async database layer (SQLite dev, PostgreSQL prod) - Conversation and Message models with UUID primary keys - Token counting utilities using litellm - Context summarization at 80% token threshold - REST API endpoints for multi-turn conversations - 19 conversation tests, 6 token tests (176 total passing) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-11 22:42:38 +01:00
parent 470b7448ac
commit 2523db4da7
19 changed files with 1506 additions and 15 deletions
@@ -25,3 +25,10 @@ rich~=13.9.0
 python-multipart~=0.0.21
 python-dotenv~=1.2.1
 pathspec~=0.12.1                       # Gitignore pattern matching
+
+# Database
+sqlalchemy[asyncio]~=2.0.36
+aiosqlite~=0.21.0                      # SQLite async driver (dev)
+
+# Token counting
+litellm~=1.57.0                        # Multi-model token counting