docs(audit): complete time zone module review

Author: robertvokac

NEXT.md

@@ -26,7 +26,7 @@ Historical session detail belongs in git history and `plan.sqlite3`.
   `Socket::Socket: socket() failed`; this matches the documented requirement
   for local-network permission. The tests remain enabled and need a
   network-permitted final-gate rerun.
-- The first 681 audit reports confirm two hundred twenty-nine findings: tracked CI omits the
+- The first 683 audit reports confirm two hundred twenty-nine findings: tracked CI omits the
   direct `Collections.Blocking` selective fixture; the boundary validator has
   narrow negative-fixture coverage; `BlockingCollection<T>` has a
   fractional-negative timeout parity gap; the source inventory does not
@@ -710,6 +710,10 @@ Historical session detail belongs in git history and `plan.sqlite3`.
   rule identity; and current DST data incorrectly stored as BaseUtcOffset.
   Focused fixtures pass 99/99 but do not cover these boundaries.
 
+- All 12 eligible files in `modules/time-zone` now have mirrored reports. The
+  component graph/catalogue validation and static target build pass; the full
+  TimeZone fixture passes 114/114. No production/test change occurred.
+
 - `Collections.Blocking` owns `BlockingCollection<T>` and its eight tests.
   It depends publicly on `Collections.Core`, `Core.Base`, and `Threading`.
 - `Collections.Core` owns the remaining synchronous/non-blocking collection

audit/AUDIT_MANIFEST.md

@@ -14,8 +14,8 @@ mirrored report exists and contains evidence rather than a boilerplate verdict.
 | Consumer fixtures and validator tests | 16 | 16 | AUDITED |
 | Integration tests | 7 | 7 | AUDITED |
 | Benchmarks | 1 | 1 | AUDITED |
-| 41 runtime modules (source, headers, tests, module docs/CMake) | 1,699 | 616 | IN PROGRESS |
-| **Total** | **1,748** | **681** | **IN PROGRESS** |
+| 41 runtime modules (source, headers, tests, module docs/CMake) | 1,699 | 618 | IN PROGRESS |
+| **Total** | **1,748** | **683** | **IN PROGRESS** |
 
 The module shard is processed in dependency/risk order rather than directory
 order: component boundaries and `Core.Base` first, then collections, IO/text,

audit/AUDIT_PROGRESS.md

@@ -6,7 +6,7 @@
 - Scope frozen from a clean `feature/work` source checkout; audit artifacts
   are the only expected working-tree changes.
 - Eligible files: 1,748.  Excluded tracked files: 33.
-- Completed per-file reports: 681.
+- Completed per-file reports: 683.
 - Confirmed findings: 229 (fifty high, one hundred sixty-eight medium, eleven low).  Open risks: 2 documented-adaptation questions.  Blocked reviews: 1 environment-limited validation run.
 
 ## Initial validation evidence
@@ -1206,6 +1206,12 @@ and New York BaseUtcOffset. Explicit no-DST/serialization subset remains
 documented adaptation. Audit-only; no source/test changes. Resume TimeZone
 CMake/README completion.
 
+Audit checkpoint 2026-07-27 11:30:00: 683/1748 mirrored reports, 229
+confirmed findings. TimeZone CMake/README audited; module boundary validator
+reports 41 modules/90 edges, generated catalogue is current, static target
+built, and full fixture passed 114/114. All 12 eligible TimeZone files are now
+mirrored. No new finding or source/test change; resume another coherent shard.
+
 Audit checkpoint 2026-07-27 08:40:00: 634/1748 mirrored reports, 199
 confirmed findings. CancellationToken, CancellationTokenRegistration,
 CancellationTokenSource, and source were audited; Threading remains 359/359.

audit/modules/time-zone/CMakeLists.txt.audit.md

@@ -0,0 +1,32 @@
+# Audit: `modules/time-zone/CMakeLists.txt`
+
+## Metadata
+
+- AUDITED: 9-line TimeZone component registration, fully read.
+- Validation: module-boundary validator passed with 41 physical modules and 90
+  dependency edges on 2026-07-27; generated catalogue is current; the
+  `sharp_runtime_time_zone` target built and its full test executable passed
+  114/114.
+
+## Assessment
+
+The declaration registers static `TimeZone` target `sharp_runtime_time_zone`
+with `Core.Base` as its only public dependency.  The generated catalogue
+matches its owner, target, kind, and direct closure; boundary validation found
+no undeclared dependency.
+
+GNU make emitted a shared-sandbox jobserver FIFO warning while the target
+built; all component targets completed, so this is environment noise rather
+than a compiler warning or a source fault.
+
+## Missing assertions and diagnostics
+
+- Boundary validation establishes graph shape, not every individual public
+  header's standalone consumer closure.
+- CMake source discovery remains configured-tree behavior rather than an
+  explicit audited source-list assertion.
+
+## Final assessment
+
+The component declaration and generated metadata agree.  No new finding and
+no source or test change.

audit/modules/time-zone/README.md.audit.md

@@ -0,0 +1,27 @@
+# Audit: `modules/time-zone/README.md`
+
+## Metadata
+
+- AUDITED: 9-line TimeZone module README, fully read.
+- Validation: dependency statement cross-checked against CMake and generated
+  catalogue on 2026-07-27; boundary/catalogue checks and full 114-test fixture
+  pass completed.
+
+## Assessment
+
+The README accurately identifies a compiled TimeZone component with public
+dependency on `Core.Base` and links to the generated catalogue.  It does not
+contradict the component registration.
+
+## Missing assertions and diagnostics
+
+- It gives no discoverability path for the deliberately reduced DST/
+  serialization model or the evidence-backed legacy/current-zone defects
+  SR-AUD-223 through SR-AUD-229.
+- It intentionally has no API inventory or platform database coverage note;
+  users need the audit mirror for those constraints.
+
+## Final assessment
+
+Accurate but intentionally minimal component metadata.  No new finding and no
+source or test change.

plan.md

@@ -238,7 +238,7 @@ exclusions, live manifest, findings index, and resume state are maintained in
 that directory. The audit is deliberately not a repair stream: confirmed
 defects, missing assertions, weak diagnostics, and parity gaps become
 evidence-backed follow-up tickets only after the manifest is reconciled.
-The 2026-07-27 checkpoint has 681 of 1,748 mirrored reports complete and
+The 2026-07-27 checkpoint has 683 of 1,748 mirrored reports complete and
 two hundred twenty-nine confirmed findings; `audit/AUDIT_PROGRESS.md` is the authoritative
 live count.