docs(conductor): type_aliases count, tracks.md stale rows, index.md guide count

- product-guidelines.md: '10 aliases' -> core + extended per-aggregate
  dataclasses (Metadata, CommsLogEntry, ... PathInfo, FileItemsDiff,
  JsonPrimitive/JsonValue) reflecting the actual ~19 types in
  src/type_aliases.py.
- tracks.md: marked rows 2 (qwen_llama_grok), 3 (data_oriented_error
  handling), 17 (code_path_audit) as Completed per chronology.md
  (they were stale 'in progress' / 'ready to start'). Added cleanup
  note. data_structure_strengthening already dropped.
- index.md: '27 deep-dive guides' -> 41 (actual count in docs/);
  refreshed last doc-refresh date to 2026-07-02 with the drift-fix
  summary.

conductor/tracks.md

@@ -18,11 +18,11 @@ Tracks that are unblocked and ready to start. Ordered by **dependency** (blocked
 | # | Priority | Track | Status | Blocked By |
 |---|---|---|---|---|
 | 36 | A (sunset) | [MMA Quarantine + RAG Test Decoupling](#track-mma-quarantine--rag-test-decoupling) | spec ✓, plan pending | (none) |
-| 2 | A | [Qwen, Llama & Grok Vendor Integration](#track-qwen-llama-grok-vendor-integration) | Phase 6 in progress (docs); NOT archiving — has follow-up | test_infrastructure_hardening_20260609 (merged) |
-| 3 | A | [Data-Oriented Error Handling (Fleury Pattern)](#track-data-oriented-error-handling) | spec ✓, plan ✓, ready to start | test_infrastructure_hardening_20260609 (merged), qwen_llama_grok |
+| 2 | A | [Qwen, Llama & Grok Vendor Integration](#track-qwen-llama-grok-vendor-integration) | **Completed** (per chronology.md; Phase 6 follow-up shipped) — row retained for cross-ref; archive candidate | test_infrastructure_hardening_20260609 (merged) |
+| 3 | A | [Data-Oriented Error Handling (Fleury Pattern)](#track-data-oriented-error-handling) | **Completed** (per chronology.md) — archive candidate | test_infrastructure_hardening_20260609 (merged), qwen_llama_grok |
 | 4 | A | [MCP Architecture Refactor (Sub-MCP Extraction)](#track-mcp-architecture-refactor) | spec ✓, plan pending | test_infrastructure_hardening_20260609 (merged), data_oriented_error_handling, data_structure_strengthening |
 | 16 | A | [Test Sandbox Hardening](#track-test-sandbox-hardening) | spec ✓, plan ✓, ready to start | (none) |
-| 17 | A | [Code Path Audit](#track-code-path-audit) | spec ✓ + plan ✓ | test_infrastructure_hardening_20260609 (merged), any_type_componentization (shipped), phase2_4_5_call_site_completion (shipped) |
+| 17 | A | [Code Path Audit](#track-code-path-audit) | **Completed** (per chronology.md) — archive candidate | test_infrastructure_hardening_20260609 (merged), any_type_componentization (shipped), phase2_4_5_call_site_completion (shipped) |
 | 22b | A | [Meta-Tooling Workflow Review](#track-meta-tooling-workflow-review) | spec ✓, plan ✓, parked | (none) |
 | 23 | A | [Intent-Based Scripting Languages Survey](#track-intent-dsl-survey) | spec ✓, plan pending | (none) |
 | 25 | B | [Fable System Prompt Review](#track-fable-review) | spec ✓, plan pending | (none) |
@@ -33,6 +33,8 @@ Tracks that are unblocked and ready to start. Ordered by **dependency** (blocked
 | 7c | B | [SQLite-Granularity Inline Docs for ai_client.py](#track-sqlite-docs-ai-client) | spec ✓, plan ✓, ready to start | (none) |
 | 19 | — | [Context First Message Fix](#track-context-first-message-fix) | spec TBD | (none) |
 
+> **Stale-row cleanup (2026-07-02):** rows 2, 3, 17 marked Completed per `conductor/chronology.md` (which is the canonical status source). They are retained here as archive candidates pending a `git mv` to `conductor/archive/`. `data_structure_strengthening_20260606` (also Completed per chronology) was already dropped from this table.
+
 ### Track detail anchors
 
 - **MMA Quarantine + RAG Test Decoupling** → `conductor/tracks/mma_quarantine_rag_test_decoupling_20260701/`