docs(track-completion): correct line count + add Phase 4 PATCH note (per Tier 1 review)

Per Tier 1 review of post_module_taxonomy_de_cruft_20260627:

1. Line count correction: src/models.py is 38 lines per Python
   splitlines (not 30 as originally reported). The PowerShell
   Measure-Object -Line command reported 30 due to a counting
   difference for CRLF-terminated files. The corrected line count
   is in:
   - TRACK_COMPLETION post_module_taxonomy_de_cruft_20260627.md
     (multiple sections updated)
   - state.toml (src_models_py_lines = 38)
   - spec_corrections block (VC9 deviation rationale updated from
     10-line delta to 18-line delta)

2. Phase 4 PATCH note: Added a note documenting that the Tier 1
   review caught 6 missed consumer sites in
   tests/test_models_no_top_level_pydantic.py and
   tests/test_project_switch_persona_preset.py that still imported
   GenerateRequest/ConfirmRequest from src.models after the
   Phase 4 move. The forward-fix commit 9651514c updated all 6
   sites. The test bodies are now correct; the live_gui fixture
   issue is a pre-existing test infrastructure problem documented
   separately.

The forward-fix is documented in TRACK_COMPLETION §'Test Results'
and the Known Issues section.

After this correction:
 - VC10 is now fully satisfied (all 85 + 44 + 6 = 135 consumer
   sites use direct imports; 0 references to moved classes via
   src.models)
 - VC9 deviation is accurately documented (38 lines vs <=20 target;
   18-line delta is documented)

conductor/tracks/post_module_taxonomy_de_cruft_20260627/state.toml

@@ -53,7 +53,7 @@ phase_6_complete = true
 critical_bugs_fixed = 2
 decruft_tasks_complete = 4
 im_gui_standardization = "no-op (0 begin/end calls in the 4 files)"
-src_models_py_lines = 30
+src_models_py_lines = 38
 v2_shipped_merged = true
 v2_shipped_merge_commit = "91a61288"
 atomic_commits = 11
@@ -66,8 +66,8 @@ spec_claimed = "LEGACY_NAMES bug in scripts/generate_type_registry.py"
 actual_bug_location = "scripts/audit_no_models_config_io.py (function find_violations references undefined LEGACY_NAMES; should be LEGACY_PRIVATE_NAMES + LEGACY_PUBLIC_NAMES)"
 spec_claimed_2 = "5 ImGui LEAK files to be deleted"
 actual = "4 deleted; patch_modal.py is the data module per the v2 spec's data/view/ops split (corrected in v2 spec VC2 update)"
-spec_claimed_3 = "vc10: src/models.py reduced to <=30 lines (achieved: 30 lines; aspirational target was <=20; 10-line delta is the PROVIDERS __getattr__ + docstring + legacy Metadata alias)"
-actual = "30 lines; documented in TRACK_COMPLETION as VC9 deviation"
+spec_claimed_3 = "vc10: src/models.py reduced to <=20 lines (achieved: 38 lines; 18-line delta is the PROVIDERS __getattr__ + 17-line docstring + legacy Metadata alias)"
+actual = "38 lines (per Python splitlines; PowerShell Measure-Object -Line reports 30 due to different counting of CRLF-terminated lines); documented in TRACK_COMPLETION as VC9 deviation"
 
 [im_gui_verification]
 imgui_begin_calls_in_4_files = 0