Assembles relevant knowledge from the store into a compact 2k-token
context block for session injection.
Features:
- Filter by repo, agent type, and global scope
- Sort by confidence (pitfalls first, patterns, facts)
- Per-repo and per-agent markdown knowledge files
- Graceful empty-store handling
- JSON output mode for programmatic use
- Token-count-aware truncation at line boundaries
Closes#11
