Adds the foundation for AI-maintained semantic file indexing:
Schema (v4 migration):
- file_index table with summary, relationships, prompt_version
- symbol_index table with name, kind, line numbers, description
- FTS5 virtual tables for full-text search
CLI commands (blue index):
- --all: Bootstrap full index
- --diff: Index staged files (for pre-commit hook)
- --file: Single file indexing
- --refresh: Re-index stale entries
- --install-hook: Install git pre-commit hook
- status: Show index freshness
MCP tools:
- blue_index_status: Get index stats
- blue_index_search: FTS5 search across files/symbols
- blue_index_impact: Analyze change blast radius
- blue_index_file: Store AI-generated index data
- blue_index_realm: List all indexed files
Remaining work: Ollama integration for actual AI indexing.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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