chore(conductor): initialize sqlite_docs_gui_2_20260612 track

conductor/tracks.md

@@ -22,6 +22,7 @@ Tracks that are unblocked and ready to start. Ordered by **dependency** (blocked
 | 5 | A | [MCP Architecture Refactor (Sub-MCP Extraction)](#track-mcp-architecture-refactor-sub-mcp-extraction) | spec ✓, plan pending | test_infrastructure_hardening_20260609 (merged), data_oriented_error_handling, data_structure_strengthening |
 | 6 | D | [Public API Result Migration](#track-public-api-result-migration-followup) | placeholder; not yet specced | data_oriented_error_handling (deprecated `send()`) |
 | 7 | — | [UI Polish (Five Issues)](#track-ui-polish-five-issues) | spec ✓, plan ✓, ready to start | (none — independent) |
+| 7a | B | [SQLite-Granularity Inline Docs for gui_2.py](#track-sqlite-granularity-inline-docs-for-gui_2py) | spec ✓, plan ✓, ready to start | (none — independent) |
 | 8 | — | [Bootstrap gencpp Python Bindings](#track-bootstrap-gencpp-python-bindings) | spec TBD | (none — independent) |
 | 9 | — | [Tree-Sitter Lua MCP Tools](#track-tree-sitter-lua-mcp-tools) | spec TBD | (none — independent) |
 | 10 | — | [GDScript Language Support Tools](#track-gdscript-language-support-tools) | spec TBD | (none — independent) |
@@ -492,6 +493,11 @@ Lightweight chronology; full spec/plan/state per track is in the linked folder.
 #### Track: RAG Phase 4 Stress Test Fix `[x] — fixed 16412ad5`
 *Status: 2026-06-06 — Surfaced during post-v2 verification. Resolved: real bug, NOT a test flake. Root cause: ChromaDB collection dimension mismatch across test runs. The persistent on-disk collection (`tests/artifacts/live_gui_workspace/.slop_cache/chroma_test_stress/`) was created by a previous run with Gemini embeddings (3072-dim); the current run uses local SentenceTransformers (384-dim). `index_file()` upserts silently corrupt the collection, then `search()` fails with `Collection expecting embedding with dimension of 3072, got 384` and the AI request never reaches 'done' status, timing out the 50*0.5s = 25s poll loop. Fix: `RAGEngine._init_vector_store` now calls `_validate_collection_dim` which inspects the first existing vector's dim, compares to the current provider's output, and recreates the collection on mismatch (with a stderr warning). Regression tests added: `test_rag_collection_dim_mismatch_recreates_collection` and `test_rag_collection_dim_match_preserves_collection` in `tests/test_rag_engine.py`. This also fixes a real user-facing bug: switching embedding providers in the GUI previously caused silent corruption. Commit 16412ad5.*
 
+#### Track: SQLite-Granularity Inline Docs for gui_2.py `[track-created: sqlite_docs_gui_2_20260612]`
+*Link: [./tracks/sqlite_docs_gui_2_20260612/](./tracks/sqlite_docs_gui_2_20260612/), Spec: [./tracks/sqlite_docs_gui_2_20260612/spec.md](./tracks/sqlite_docs_gui_2_20260612/spec.md), Plan: [./tracks/sqlite_docs_gui_2_20260612/plan.md](./tracks/sqlite_docs_gui_2_20260612/plan.md)*
+
+*Goal: Add SQLite-granularity docstrings with embedded ASCII layouts and DAG relationships for `src/gui_2.py` panel-by-panel. Ensure zero functional regression. 5 phases: app lifecycle & setup, discussion panel, context panel, settings/hubs, and diagnostics/modals.*
+
 #### Track: Intent-Based Scripting Languages Survey `[COMPLETE: 213e4994]`
 *Link: [./tracks/intent_dsl_survey_20260612/](./tracks/intent_dsl_survey_20260612/), Spec: [./tracks/intent_dsl_survey_20260612/spec.md](./tracks/intent_dsl_survey_20260612/spec.md), Plan: [./tracks/intent_dsl_survey_20260612/plan.md](./tracks/intent_dsl_survey_20260612/plan.md), Report: [./tracks/intent_dsl_survey_20260612/report_v1.2.md](./tracks/intent_dsl_survey_20260612/report_v1.2.md), v1.1: [./tracks/intent_dsl_survey_20260612/report_v1.1.md](./tracks/intent_dsl_survey_20260612/report_v1.1.md), v1.0: [./tracks/intent_dsl_survey_20260612/report.md](./tracks/intent_dsl_survey_20260612/report.md), Review: [./tracks/intent_dsl_survey_20260612/reportreview.md](./tracks/intent_dsl_survey_20260612/reportreview.md)*