feat: add new skills for coding standards, continuous learning, detail layout, form layout, project guidelines, security review, and verification loop

- Introduced coding standards for TypeScript and React in SKILL.md.
- Added continuous learning skill with configuration and evaluation scripts.
- Created detail layout guidelines for read-only pages.
- Established form layout rules for data-entry forms.
- Documented project guidelines for the frontend monorepo.
- Implemented security review checklist for frontend/Electron applications.
- Developed a verification loop skill for comprehensive session checks.

This commit enhances the skill set available for developers, ensuring adherence to best practices and improving code quality.

.cursor/commands/refactor-clean.md

@@ -0,0 +1,28 @@
+# Refactor Clean
+
+Safely identify and remove dead code with test verification:
+
+1. Run dead code analysis tools:
+   - knip: Find unused exports and files
+   - depcheck: Find unused dependencies
+   - ts-prune: Find unused TypeScript exports
+
+2. Generate comprehensive report in .reports/dead-code-analysis.md
+
+3. Categorize findings by severity:
+   - SAFE: Test files, unused utilities
+   - CAUTION: API routes, components
+   - DANGER: Config files, main entry points
+
+4. Propose safe deletions only
+
+5. Before each deletion:
+   - Run full test suite
+   - Verify tests pass
+   - Apply change
+   - Re-run tests
+   - Rollback if tests fail
+
+6. Show summary of cleaned items
+
+Never delete code without running tests first!