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* feat(memory): phase 1 memory tree - multi-source ingestion & canonical chunks (#707) Adds an isolated memory tree layer under src/openhuman/memory/tree/ implementing Phase 1 of the new memory architecture (umbrella #711). Zero edits to existing memory/*.rs files - the new layer coexists with the legacy TinyHumans-backed client. - Source adapters: chat / email / document -> canonical Markdown - Token-bounded chunker with deterministic SHA-256 chunk IDs - SQLite persistence at <workspace>/memory_tree/chunks.db with full provenance metadata (source_kind, source_id, owner, timestamps, tags, time_range) and back-pointer to raw source - Unified JSON-RPC ingest (dispatches on source_kind + JSON payload): openhuman.memory_tree_ingest, _list_chunks, _get_chunk - DataSource enum covering the 8 providers from m.excalidraw step 1 (Discord/Telegram/Whatsapp/Gmail/OtherEmail/Notion/MeetingNotes/DriveDocs) - ~40 unit tests (chunk ID stability, UTF-8-safe splitting, canonicalisation idempotence, store round-trip, filter behavior) Additive only: new tables in a new DB file, new JSON-RPC namespace, no existing behavior changes. Feeds #708 (scoring), #709 (summary trees), #710 (query tools). Closes #707. Parent: #711. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(memory): enhance memory tree functionality and tests - Added support for "memory_tree" namespace description in `namespace_description`. - Implemented clamping for zero token budget in `chunk_markdown` to prevent empty leading chunks. - Introduced detailed logging for document ingestion, including title length. - Updated output schemas in `schemas.rs` for improved clarity. - Enhanced chunk listing with clamping limits and ordering by sequence in `list_chunks`. - Normalized source references in canonicalization functions to drop blank values. - Added comprehensive tests for new features and edge cases in chunking and canonicalization. These changes improve the robustness and usability of the memory tree layer, aligning with ongoing development efforts for Phase 1 of the memory architecture. * fix(memory): address follow-up CodeRabbit comments --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> Co-authored-by: Steven Enamakel <enamakel@tinyhumans.ai>