[argszero]

Summary

The module note of src/option_escape_gate.rs (the option-template escaping
gate, R71) claimed:

ui/README.md 五处写「先 esc()」。

— "ui/README.md writes 'esc() first' in five places". No reading of that
file yields five today.

Related Issue

None — a drive-by documentation fix found while auditing doc comments against
today's tree.

Changes

src/option_escape_gate.rs: drop the stale count, keep the assertion —
ui/README.md 里写着「先 esc()」.

Census of ui/README.md today (and at the commit that wrote this line):

what is counted	today	at 1484311 (#337, wrote this line)
lines containing esc(	8	8
lines containing esc()	4	4
lines containing 转义	4	—
lines containing the literal 「先 esc()」	1 (:161)	1

So the number never counted the phrase it names. It matches at most the
esc( line count of 1484311's parent tree (5) — and 1484311 itself
raised that count to 8 by adding the R71 section to ui/README.md. A
snapshot of a quantity its own author keeps raising is an ownerless count,
so the fix is to drop the number rather than refresh it (cf. deploy_gate.rs
and state_gate.rs, R162/R164/R165). The assertion stays true:
ui/README.md:161 (the highlight bullet) does write 「先 esc()」.

Tests

• cargo build
• cargo test — 557 passed, 0 failed
• cargo fmt --check — rc 0
• cargo clippy --all-targets -- -D warnings — rc 0
• Comment-only change; no gate added, no cache-bust needed (the file is
  src/*.rs and ui/README.md is untouched).

Checklist

• Conventional-commit style
• No unrelated changes

[argszero]

Self-review

Verified on the branch (docs/option-escape-gate-readme-esc-count, off
upstream/main@d63341a):

• The claim was false about today under every reading. Census of
  ui/README.md at this base: lines containing esc( = 8, esc() = 4,
  转义 = 4, the literal 「先 esc()」 = 1 (only the highlight bullet at
  :161). None is five.
• It was never true either. git show 1484311^:ui/README.md | grep -c 'esc('
  = 5, and git show 1484311:ui/README.md | grep -c 'esc(' = 8 — the very
  commit that wrote this note raised the esc( count by adding the R71
  section to ui/README.md. The literal phrase was 1 at authoring time too.
• No owner. grep -rn '五处' --include='*.rs' hits only this line; the
  only other hit repo-wide is CHANGELOG.md:18, a release-history sentence
  about ui/js/app.js's five <option> builders — a different fact. No test
  asserts the number.
• Fix = drop the number, keep the assertion (repo practice:
  deploy_gate.rs R162, state_gate.rs R164/R165). The assertion survives:
  ui/README.md:161 does write 「先 esc()」.
• Comment-only, 1 insertion / 1 deletion, line count unchanged (488).
• cargo build ok · cargo test 557 passed / 0 failed · cargo fmt --check
  rc 0 · cargo clippy --all-targets -- -D warnings rc 0.
• No gate added, no cache-bust (src/*.rs edit; ui/README.md untouched).
• Tested blob 76ecdfe2d84580f36cad48e9383b9e86c4b8410a.