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Progress

Previous: Epic 1 (Test PRD) — COMPLETE

  • Feature 1.1: /api/v1/ping endpoint — COMPLETE (commit 981e3b1)

Phase 3 Pipeline Repair — COMPLETE

Epic 1: Profile Click-to-Jump Navigation — COMPLETE

  • Feature 1.1: Frontend DTO schema augmentation — COMPLETE
    • Added sourceCanvasId/sourceNodeId to TipItem and WeaknessItem (api-client.ts + types.ts)
    • 6 vitest tests pass ✅
  • Feature 1.2: Backend serialization of source IDs — COMPLETE
    • Added source_canvas_id/source_node_id to Pydantic models + Cypher queries (profile.py)
    • 15 pytest tests pass ✅
  • Feature 1.3: Frontend click-to-jump handler — COMPLETE
    • Added onNavigateToSource callback prop to LearningProfile.tsx
    • Navigate button renders for items with source IDs
    • 6 vitest tests pass ✅

Epic 2: Architectural Pruning — cross_canvas + RAG Cleanup — COMPLETE

  • Feature 2.1: Delete cross_canvas_service.py — COMPLETE
    • Deleted cross_canvas_service.py (1368 lines) + cross_canvas.py endpoint (768 lines)
    • Removed from dependencies.py, context_enrichment_service.py, verification_service.py
    • grep "cross_canvas" backend/app/ = 0 results ✅
    • 7 verification tests pass ✅
  • Feature 2.2: Remove textbook_retriever references — COMPLETE
    • Deleted textbook_context_service.py (659 lines) + textbook.py endpoint (231 lines)
    • Removed from dependencies.py, router.py, context_enrichment, verification, agents
    • RAG channels: 6→4 (LanceDB, Vault Notes, Graphiti, Multimodal) ✅
  • Feature 2.3: Fix vault_notes dual-search bug — COMPLETE
    • Removed vault_notes from LanceDB DEFAULT_TABLES (was queried twice)
    • DEFAULT_TABLES now ["canvas_nodes"] only, vault_notes via dedicated retriever ✅

Epic 3: Layer 3 ACP Prompt Externalization — COMPLETE

  • Feature 3.1: Create layer3.md template — COMPLETE
    • Created backend/app/prompts/exam/layer3.md with 7 placeholders + optional_sections
    • Follows existing layer1/2/4/5 pattern ✅
  • Feature 3.2: Refactor _format_acp_layer to load from file — COMPLETE
    • _format_acp_layer now loads template via _load_prompt_file("layer3.md")
    • Conditional sections (tips/errors/edges/conversation) built in Python, injected as {optional_sections}
    • Graceful fallback if template file missing
    • 11 pytest tests pass ✅

Epic 5: Chinese Hybrid Search Activation — COMPLETE (already implemented)

  • Feature 5.1: Default search mode is "hybrid" — ALREADY DONE ✅
    • config.py:172 and lancedb_client.py:2192 both default to "hybrid"
  • Feature 5.2: Jieba tokenization wired into pipeline — ALREADY DONE ✅
    • Index-time: add_documents() calls _jieba_tokenize() → content_tokenized column
    • Query-time: _search_internal() hybrid branch calls _jieba_tokenize(query)
    • FTS index: _rebuild_fts_index() creates Tantivy index on content_tokenized
    • RRF fusion merges dense + FTS results (k=60)
    • 23 verification tests pass ✅

Epic 6: group_id Dynamic Binding — COMPLETE

  • Feature 6.1: Pass canvas name as group_id — COMPLETE
    • Added extract_canvas_name() to subject_config.py
    • Updated all 4 build_group_id() calls in memory_service.py to pass canvas_name
    • group_id now formatted as "subject:canvas_name" (e.g., "math:离散数学")
    • Different canvases produce isolated memory namespaces ✅
  • Feature 6.2: Normalize canvas name to group_id format — COMPLETE
    • sanitize_subject_name() handles Unicode + ASCII normalization
    • 21 pytest tests pass ✅

Epic 4: Neo4j Fulltext Index + search_memories Completion — COMPLETE

  • Feature 4.1: Auto-create episode_content fulltext index on startup — COMPLETE
    • Added ensure_fulltext_index() to MemoryService (IF NOT EXISTS for idempotency)
    • Called during FastAPI lifespan startup in main.py
    • Graceful degradation when Neo4j unavailable ✅
  • Feature 4.2: Three-tier search with logging — COMPLETE
    • Tier 1→2→3 fallthrough with per-tier result count logging
    • Tests verify tier fallthrough behavior ✅

ALL_EPICS_COMPLETE