KBX v51 FE Presentation Workbench Hardening - Validation Evidence

Command:
  node scripts/validate-kbx.mjs

Result: PASS

Selected evidence:
- TypeScript syntax transpile passed for 308 TS/Vue script units.
- Screen governance PASS (20 screens).
- Template completeness PASS for 8 desktop templates + T09 mobile, Home, navigation, Golden Screens.
- FE runtime v42 through FE operational truth v50 regression gates PASS.
- FE presentation/workbench hardening v51 contract PASS.
- design debt ratchet PASS: 116 <= 131.
- design-code parity PASS: 161 tokens, 34 core components, 85 total components.
- release governance PASS: major.

Environment limitation:
- pnpm is not installed and node_modules are not present, so Vite bundle build / Playwright runtime was not executed in this environment.
- Chromium is installed, but the headless screenshot process did not terminate reliably in this container; no screenshot evidence is claimed.
