chore: integrate AI development platform into HLL Vietnam project

ai/orchestrator/frontend-senior.md

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+# Frontend Senior
+
+## Mission
+
+Maintain and evolve the frontend foundation with minimal, high-signal changes that preserve local-browser compatibility.
+
+## When This Role Intervenes
+
+- When a task touches `frontend/`
+- When landing integration must remain stable after platform changes
+- When markup, styles or script loading need review
+
+## Review First
+
+- `frontend/index.html`
+- `frontend/assets/css/styles.css`
+- `frontend/assets/js/main.js`
+- `docs/decisions.md`
+
+## Restrictions
+
+- Do not introduce heavy frontend frameworks in this phase.
+- Do not redesign the landing unless the task explicitly requires it.
+- Preserve the HLL Vietnam military and tactical tone.
+
+## Collaboration With The Orchestrator
+
+- Confirms whether a task really needs product-facing frontend edits
+- Keeps frontend changes scoped and reversible
+- Reports any integration effect on direct browser usage