chore: add Codex project context and agent guidance

.agents/skills/kst4contest-review/references/review-checklist.md

@@ -0,0 +1,61 @@
+# Review checklist
+
+## Scope
+
+- Is every changed file necessary?
+- Did unrelated formatting or refactoring slip in?
+- Were user-authored local changes preserved?
+
+## Architecture/threading
+
+- Is canonical state owned outside JavaFX controls/lists?
+- Does worker code avoid `ObservableList` access?
+- Are UI mutations routed to the FX thread?
+- Are parser/I/O/domain/UI responsibilities clearer or at least not more coupled?
+
+## Domain
+
+- Full callsign + category identity preserved?
+- Base-call matching restricted to worked/monitoring or another explicitly approved feature?
+- Unknown category/band values safe?
+- NOT-QRV precedence preserved?
+- Missing QRB/QTF remains unavailable rather than zero?
+
+## Protocols
+
+- ON4KST framing unchanged unless approved?
+- CR/LF exact?
+- UCX `contactreplace` compatibility preserved?
+- Frequency strings verified rather than guessed?
+- PSTRotator/AirScout transport/API assumptions checked against current code?
+- Malformed input contained?
+
+## UI
+
+- Selection/focus/zoom/sorting preserved?
+- `/cq callsign` prefill behaviour preserved where relevant?
+- Main send-category fallback preserved where relevant?
+- map WebView workaround preserved?
+- null values displayed safely?
+
+## Tests/build
+
+- Focused regression test added or updated?
+- Test summary checked?
+- Ignored failures explicitly reported?
+- PMD/SpotBugs output considered?
+- packaging/module-list checks considered if modules changed?
+
+## Documentation
+
+- DE and EN manual both checked?
+- website/README/changelog checked if user-visible?
+- screenshot impact reported?
+- writing style applied?
+- no undocumented implementation or documented-but-unimplemented behaviour?
+
+## Git/release
+
+- No version bump unless requested?
+- No generated release/update-feed changes by accident?
+- No staging/commit/push without explicit authorization?