fix(deps): update dependency sqlalchemy to >=2.0.46

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
sqlalchemy (changelog)	>=2.0.45 → >=2.0.46

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[claude]

PR Review - SQLAlchemy 2.0.45 → 2.0.46 Update

Summary

This is a Renovate bot-managed dependency update that bumps SQLAlchemy from >=2.0.45 to >=2.0.46. The change is a minor patch update in the same major version.

Code Quality ✅

• Clean dependency update with proper lockfile sync
• No code changes required

Compatibility Assessment ✅

Based on codebase analysis:

• Uses SQLAlchemy async engine API (create_async_engine, AsyncConnection)
• Uses text() for parameterized queries (safe pattern)
• No usage of deprecated features
• Database-agnostic approach using raw SQL via text() aligns with project conventions

Security ✅

• Patch updates typically include bug fixes and security improvements
• Parameterized query pattern with text() already provides SQL injection protection
• No new security concerns introduced

Performance ⚠️

Recommendation: Monitor connection pool behavior after deployment

• The code uses custom pool settings (pool_size=10, max_overflow=20)
• Patch updates can include connection pool improvements or fixes
• Watch for any unexpected connection timeout or pool exhaustion issues

Testing ⚠️

Note: Tests could not be executed in this environment

• Recommend running full test suite locally: task test
• Verify migrations still work: Check run_migrations() in production-like env
• Test async operations with sqlite-vec extension loading

Breaking Changes ✅

• No breaking changes expected in patch version
• Lock file properly updated with new wheel hashes

Recommendations

1. ✅ Approve and merge - This is a routine dependency update
2. ⚡ Run task test before merging to ensure no regressions
3. 📊 Monitor application logs after deployment for any SQLAlchemy-related warnings
4. 🔍 Check SQLAlchemy 2.0.46 changelog for specific fixes

Verdict: Safe to merge after tests pass.