[raylei50653]

Docs-only writeback of the CC-536-01-02 implementation status after the #549 S2-1a merge, authorized by the owner for documentation changes and review only, not merge.

Source baseline: main@56540bf93a8988b546535f480e5123d8f8e97c52, the #572 merge commit with parents 15e81950 and reviewed head 2b2b45aa.

Changes

• docs/architecture/ship_export_contracts_536.md
  • Status wording: the terminology line, the §1 legend and the CC-536-01-02 status line now record that N-T3 legacy checksum_matched is implemented, at source level only, in feat(shipping): observe legacy Gate A checksum identity (S2-1a) #572.
    • expected_source_verified, the recognised expected source and the enforcing policy remain accepted target.
    • CC-536-01-02 as a whole is not complete.
  • Stale text removed: the "S2-1a 候選實作／尚未 merged" bullet is deleted, and the feat(#536): Gate A preflight before the first CUDA call (CC-536-01-02 N-T2) #565 sentences that said N-T3 was not implemented are now scoped to the feat(#536): Gate A preflight before the first CUDA call (CC-536-01-02 N-T2) #565 slice.
  • New #cc-536-01-02-status-n-t3 block: it keeps four evidence sources separate:
    • PR CI 8/8;
    • the independent Codex read-only review (not a GitHub APPROVED review);
    • the runtime coordinate chore(provenance): review S2-1a runtime coordinate republication #573;
    • the actual main CI result for 56540bf9: 8/8 SUCCESS, CI run 38102304284 with headSha = the merge SHA, plus C++ build; pytest 5347 passed.
  • Unverified items, listed: V5 GPU parity UNRESOLVED (driver 617.42 ≠ 616.92), installed package UNVERIFIED, runtime equivalence unproven.
  • Evidence: linked to native_identity_observability_549.md, not copied.
  • Other updates: the §5 N-T3 index row and the §6 item 4 note.
• docs/reference/native_identity_observability_549.md: only the status paragraph changes. It no longer describes itself as an "unmerged implementation candidate" and now points to the contract card as the single status writer. The evidence tables are unchanged.

Verification

• check_doc_links.py: all 3088 relative links resolve.
• check_doc_structure.py --strict: no state-projection violations. The 2 S2 warnings were already on main and are unrelated.
• Local scripts/pre_push.sh on the clean committed tree: exit 0 at 7f619260 (HEAD unchanged, tree clean during the run): 5575 passed, 52 skipped, 105 deselected, 5 xfailed. An earlier run had 2 test_h2_measurement_controller.py failures (H2_MEASUREMENT_EXECUTION_INVALID) because I committed/amended while it was running; on the clean tree that file passes 63/63.

Not changed / not claimed

• No runtime, test, CI or coordinate changes.
• No main CI PASS is claimed for any other SHA.
• The [Architecture umbrella] Separate model artifacts from Saccade runtime and release lifecycle #549/architecture(B): design a supported architecture with traceable diagrams and behavior contracts #536 checkpoint comments were posted before main CI finished and say so; this PR does not rewrite them.
• No merge authorization. S2-1 still needs its own owner authorization. [465 follow-up] Public distribution readiness: licence decisions, release key, publish decision #547 stays local-only.

🤖 Generated with Claude Code

[raylei50653]

Review P2 addressed — head a7e4a7e7

P2 (§4 intro contradicts the new status): fixed in a7e4a7e7bf0c806a538f749a9f13bdfadc16f66b. The line ship_export_contracts_536.md:146 now says:

• CC-536-01-02 has implemented Gate A (N-T2) and legacy N-T3 checksum_matched, both source-level, linked to the status section;
• expected_source_verified, the recognised expected source and the enforcing policy are still not implemented;
• the card as a whole is not complete.

Same kind of issue, fixed in the same commit: §6 item 3 said "identity.level 維持 null" with no time scope. It is now scoped to the #565 slice and points to item 4 for the #572 N-T3 addition.

No other text changed (2 lines, 1 file).

Verification:

• check_doc_links.py: 3088 links resolve.
• check_doc_structure.py --strict: no state-projection violations.
• Local pre_push.sh at a7e4a7e7, clean tree, HEAD unchanged during the run: exit 0; 5575 passed, 52 skipped, 105 deselected, 5 xfailed.

PR CI for the new head is pending. The PR stays Draft, and merge needs separate authorization.