docs(01-02): add frontend shell summary — built as part of 01-01

.planning/phases/01-foundation/01-02-SUMMARY.md

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+---
+plan: 01-02
+phase: 01-foundation
+status: complete
+completed: 2026-04-05
+---
+
+# Plan 01-02: Frontend Shell — Summary
+
+## What Was Built
+
+Terminal-aesthetic frontend shell with full DAW skeleton layout, implemented as part of plan 01-01 (backend scaffold agent built the frontend files alongside the backend).
+
+## Key Files Created
+
+- `lightsync/frontend/index.html` — Full DAW skeleton: header (LIGHTSYNC + status), DEVICES panel (functional), ANIMATIONS placeholder, TIMELINE placeholder, TRANSPORT footer
+- `lightsync/frontend/style.css` — Terminal aesthetic: `#0a0a0a` background, `#00ffff` cyan accents, monospace font (JetBrains Mono), CSS Grid layout, sharp edges
+- `lightsync/frontend/app.js` — WebSocket client stub, device panel JS
+
+## Acceptance Criteria Met
+
+- ✓ Dark background (`#0a0a0a`), monospace font, cyan accents
+- ✓ All 4 panels present: DEVICES, ANIMATIONS (placeholder), TIMELINE (placeholder), TRANSPORT (placeholder)
+- ✓ Panel headers uppercase
+- ✓ WebSocket stub present
+- ✓ No rounded corners, no gradients, no generic SaaS look
+
+## Notes
+
+Frontend files were created by the 01-01 backend scaffold agent which built the full package including frontend shell. No separate execution required.