S2: Colony chat UI — dark industrial design, JetBrains Mono

- Channel sidebar with create
- Message timeline with type-based styling (code/result/error/plan)
- Agent messages get glow line + AGENT badge
- Agent metadata strip (model, hostname, cwd, skill)
- Reply-to with context preview
- Compose box with message type selector (Alt+1-5)
- 3s polling for live updates (WebSocket in S5)
- Vite proxy to backend, TypeScript strict mode, Biome linting

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/colony/package-lock.json

@@ -10,6 +10,7 @@
       "dependencies": {
         "@base-ui/react": "^1.3.0",
         "@fontsource-variable/geist": "^5.2.8",
+        "@fontsource/jetbrains-mono": "^5.2.8",
         "@tailwindcss/vite": "^4.2.2",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
@@ -906,6 +907,15 @@
         "url": "https://github.com/sponsors/ayuhito"
       }
     },
+    "node_modules/@fontsource/jetbrains-mono": {
+      "version": "5.2.8",
+      "resolved": "https://registry.npmjs.org/@fontsource/jetbrains-mono/-/jetbrains-mono-5.2.8.tgz",
+      "integrity": "sha512-6w8/SG4kqvIMu7xd7wt6x3idn1Qux3p9N62s6G3rfldOUYHpWcc2FKrqf+Vo44jRvqWj2oAtTHrZXEP23oSKwQ==",
+      "license": "OFL-1.1",
+      "funding": {
+        "url": "https://github.com/sponsors/ayuhito"
+      }
+    },
     "node_modules/@hono/node-server": {
       "version": "1.19.11",
       "resolved": "https://registry.npmjs.org/@hono/node-server/-/node-server-1.19.11.tgz",