## Wave 1: Database Foundation
- Add SQL schema for code_chunks, code_entities, entity_relationships
- Use RuVector 768-dim embeddings (not pgvector)
- Implement hybrid_code_search function (BM25 + vector)
- Add pg_trgm extension for full-text search
- Create setup scripts for Ollama/nomic-embed-text
## Wave 2: Multi-Language Parser
- Implement TreeSitterParser with 5 language support
- Add language-specific extractors (TS, Python, Go, Rust, JS)
- Implement incremental parsing with tree caching
- Create comprehensive test suite with fixtures
## Architecture Decision
- Defer Apache AGE to v2 (see ADR-002)
- Use SQL tables for graph relationships
- Rationale: Lower complexity, team familiarity, sufficient for v1
Closes#159, Closes#160🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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