fix(v1.7.0 umbrella — Phase 3): Test \& CI Coverage (12 items)

[sgwannabe]

v1.7.0 phase umbrella — Test & CI Coverage (12 items).

Audit source: ComBba P3 comment on #25

Items

• T-1 — 26 advocate idea.spec.json 참조 카운트 (CI enforce)
• T-2 — _filled_ratio 공식 바인딩 + CI fixture
• T-3 — must_have_constraints normalization + schema enum
• T-4 — generate-gallery.sh 4-mode fixture (valid / tainted / mixed / cache-hit placeholder)
• T-5 — preview-cache.sh 3rd-arg routing + numeric-file-trap test
• T-6 — open-browser.sh fake-PATH shim + URL injection guard test
• T-7 — Stage 2 mock UX harness (AskUserQuestion replay)
• T-8 — LESSON 0.7 regression fixture
• T-9 — Edge cases (empty previews.json, malformed idea.spec.json, etc.)
• T-10 — UTF-8 encoding 전역 명시 (open(..., encoding="utf-8"))
• T-11 — Ledger tmp-file 고유 이름 (PID/UUID suffix)
• T-12 — Cross-platform CI 매트릭스 (Ubuntu / macOS / Windows)

Definition of Done

• All 12 items shipped
• CI job added that fails on any P1~P9 regression fixture
• Codex adversarial clean at final PR

Execution order note

Phase #4 of 8 remaining (P4 → P1 → P2 → P3 → ...). Comes after P2 so the new flow-correctness contracts have tests.

[sgwannabe]

v1.7 audit complete — Phase 3 closes

Item	Shipped via	Notes
T-1	PR #44	26 advocate idea.spec.json reference count CI
T-2	PR #54 (Part C)	scripts/compute-filled-ratio.py + 7-case fixture
T-3	PR #54 (Part C)	scripts/normalize-constraints.py + schema enum + 13-case fixture
T-4	PR #44	generate-gallery.sh 4-mode fixture
T-5	PR #44 / #45	preview-cache.sh 3rd-arg routing test
T-6	PR #44	open-browser.sh fake-PATH shim test
T-7	deferred → #57	e2e mock-bootstrap harness (assessment doc)
T-8	PR #54 (Part C)	LESSON 0.7 regression fixture (chosen_preview anchor proof)
T-9	PR #44 / #45	Edge cases (empty/UTF-8/>200KB/concurrent/None coerce)
T-10	PR #44	UTF-8 encoding global
T-11	PR #44	Ledger tmp-file unique name (NamedTemporaryFile + os.replace)
T-12	PR #54 (Part C, partial)	macOS CI matrix shipped; Windows deferred → #57

11 of 12 shipped. T-7 deferred + T-12 partial (Windows pending) tracked in #57.

v1.7 audit complete.