MVP-0: First Field Upload — UI with Dataset Explorer, Artifact Viewer, Mission Upload

- Dataset Explorer: list missions with processing status
- Artifact Viewer: mission details, metadata, processing status
- Mission Upload: simple video upload form
- React + Vite + React Router
- Proxy to API at localhost:3000

MVP-0 Acceptance Criteria:
✅ Upload video
✅ Create mission
✅ View mission in Dataset Explorer
✅ View artifact details
✅ See processing status

No AI. Just file transfer, storage, metadata, registry.

Next: Pilot 001 — First real field upload

packages/ui/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "module": "ESNext",
+    "skipLibCheck": true,
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "jsx": "react-jsx",
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "include": ["src"],
+  "references": [{ "path": "./tsconfig.node.json" }]
+}