YOMIHON #848 - REPRODUCIBLE ENGINEERING REPLAY
Repository: Koopa0/yomihon
Issue: #848
Baseline: dabb04ae74fe969e3a423894ec9f10a86a2fb759
Submitted commit: 6b3698336313966ce09570eeb8270a7976809bad

SCREEN GATE: PASS 100/100
No competing PR or contributor claim at pre-code revalidation.

RED REGRESSION
PS> go test ./internal/note -run TestNoFrontmatterStatusFaceFollowsContract -count=1
--- FAIL: TestNoFrontmatterStatusFaceFollowsContract/required
required/status panel missing "沒有 frontmatter（契約要求必須有）。"
required/seal bar missing "沒有 frontmatter（契約要求必須有）。"
required/status panel missing "No frontmatter (the contract requires one)."
required/seal bar missing "No frontmatter (the contract requires one)."
[exit=1]

FIX
Read the declaration through internal/schema Contract.RequiresFrontmatter().
Carry FrontmatterRequired through the production note handler into NoteView.
Use bilingual wording from internal/wording.
Both reader-visible status faces select wording from the canonical contract declaration.
No judge golden data or status-write semantics changed.

MUTATION PROOF
Temporarily remove the FrontmatterRequired branch from noFrontmatterLine.
PS> go test ./internal/ui/pages -run TestNoFrontmatterStatusFaceFollowsContract -count=1
--- FAIL: TestNoFrontmatterStatusFaceFollowsContract/required
Required wording count became 0 while legal wording was rendered.
MUTATION_TEST_EXIT=1
MUTATION_RESTORED=YES

FINAL FOCUSED GREEN
PS> go test ./internal/ui/pages -run TestNoFrontmatterStatusFaceFollowsContract -count=1
ok github.com/koopa0/yomihon/internal/ui/pages
[exit=0]

STATIC CHECK
PS> go vet ./internal/note ./internal/ui/pages
VET_EXIT=0
PS> git diff --check
DIFFCHECK_EXIT=0

WINDOWS BASELINE COMPARISON
PS> go test -json ./internal/note ./internal/ui/pages -count=1
Untouched upstream failing tests: 66
Patched branch failing tests: 66
New failures on patched branch: 0
Baseline-only failures: 0
The shared failures are pre-existing Windows/platform behavior.

SUBMISSION
Commit: 6b3698336313966ce09570eeb8270a7976809bad
PR: https://github.com/Koopa0/yomihon/pull/852
PR state at evidence capture: OPEN / BLOCKED / no checks scheduled yet
make verify: NOT RUN locally - GNU Make unavailable on this Windows workstation
Full repository CI remains authoritative.

Replay complete. Full terminal transcript, diff, validation summary and hashes are retained in the case-study evidence package.