[squid-protocol]

Part of #5780 #5781 #5782 #5783 #5784

One PR on purpose: separate re-pins of the same FIDELITY_PROVENANCE record would conflict.

What

• gitgalaxy/standards/fidelity_table.py regenerated with tests/tools/fidelity_table.py against keyword-rosetta c45713c0 (main, 2026-10-26; includes Silent "0 Files Scanned" Failure (Schema Mismatch) for supply chain firewall #159-The Router Prefix Blindspot (False Positives) for full_api_network_map #163): corpus_sha 83fd3487 -> c45713c0, languages 51 -> 56. The only table changes are the five new rows (acs units_public 0.9231, crystal state_mutation 0.2222, fsharp units_documented 0.5, postgresql {}, zscript units_public 0.9231); no existing row moved. The generator omits the trailing comma after "signals", so it was added by hand (ruff format); --check reads fresh.
• docs/wiki/08-03-transforming-regex-counts.md: generated tables refreshed (fidelity_table.py --docs).
• docs/language_status/README.md: index rows for acs (written, Language support: DOOM-ecosystem files are unsupported — ZScript .zs (295 files), GLSL .fp/.vp, ACS .acs, Arduino .ino, CMake .cmake #5465) and postgresql (not written; no postgresql.md exists).
• acs.md, zscript.md: dropped the now-stale "no keyword-rosetta folder" / "no index row" gaps.

Evidence

• language_addition_audit.py --lang {fsharp,crystal,acs,zscript,postgresql} with KEYWORD_ROSETTA_PATH set: no keyword-rosetta warning left, no re-pin-owed warning. Remaining warnings: fsharp/crystal/zscript class_start named extraction not in _CLASS_START_NAMED_EXTRACTION_LANGS (separate harden-class-start-extraction work); acs/postgresql README row warning fixed here.
• pr_gates --fast: 7/7 pass. pr_gates --ratchets: 9/9 pass, 0 skipped. crucible_check.py (both legs): PASS, no golden re-bless needed. test_language_strictness + tests/tools fidelity/language_addition tests: 38 passed.

Class / Sibling gaps

Class: per-language rows of the fidelity re-pin owed after a keyword-rosetta language addition (provenance sha + folder count + the language's row). Members: fsharp, crystal, acs, zscript, postgresql: all handled here. Sibling gaps: none for the re-pin. Not in scope and unchanged: class_start named extraction for fsharp/crystal/zscript (needs the harden-class-start-extraction pass); no postgresql.md status doc (index row says "not written").

Lessons for agents

• A local keyword-rosetta checkout is absent on the box: git clone https://github.com/squid-protocol/keyword-rosetta into /tmp/gitgalaxy-scratch/claude/<slug>/ and point KEYWORD_ROSETTA_PATH at it for fidelity_table.py and language_addition_audit.py.
• fidelity_table.py writes "signals": "21" without a trailing comma, so ruff format (pr_gates lint) fails until it is added.

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