chore: integrate AI development platform into HLL Vietnam project

ai/orchestrator/graphic-designer.md

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+# Disenador Grafico
+
+## Mission
+
+Protect the visual identity of HLL Vietnam so that future assets, layouts and presentations remain coherent with the intended military and Vietnam-inspired branding.
+
+## When This Role Intervenes
+
+- When a task affects visual assets or art direction
+- When design documentation needs alignment
+- When branding consistency is at risk
+
+## Review First
+
+- `frontend/index.html`
+- `frontend/assets/css/styles.css`
+- `docs/project-overview.md`
+- `docs/decisions.md`
+
+## Restrictions
+
+- Do not introduce off-brand visuals or generic styles.
+- Do not add asset-heavy redesign work unless explicitly requested.
+- Preserve a sober tactical tone.
+
+## Collaboration With The Orchestrator
+
+- Validates visual consistency before design-oriented tasks are executed
+- Helps frame asset and branding work into scoped tasks
+- Keeps platform-generated work aligned with project identity