feat: persist draft messages and UI refinements

- Add dedicated draft-store with AsyncStorage persistence for drafts
  that survive app refresh/crash
- Reduce markdown bold weight from bold to medium (500)
- Various theme and component style updates
- Server bootstrap and config improvements

🤖 Generated with [Claude Code](https://claude.com/claude-code)

package-lock.json

@@ -11,7 +11,8 @@
       "license": "MIT",
       "workspaces": [
         "packages/server",
-        "packages/app"
+        "packages/app",
+        "packages/relay"
       ],
       "dependencies": {
         "@anthropic-ai/claude-agent-sdk": "^0.1.75"
@@ -1607,6 +1608,13 @@
         "react-native": "*"
       }
     },
+    "node_modules/@cloudflare/workers-types": {
+      "version": "4.20260113.0",
+      "resolved": "https://registry.npmjs.org/@cloudflare/workers-types/-/workers-types-4.20260113.0.tgz",
+      "integrity": "sha512-CS2tUdGn1EMAV5GoFYYUfsZ4vwwXiYxwrUiI8ZRkxrJGqkHNGily/5Zf+vt/wh1HSoiCIChNYiuLEoCA/XUybw==",
+      "dev": true,
+      "license": "MIT OR Apache-2.0"
+    },
     "node_modules/@cspotcode/source-map-support": {
       "version": "0.8.1",
       "resolved": "https://registry.npmjs.org/@cspotcode/source-map-support/-/source-map-support-0.8.1.tgz",
@@ -5965,6 +5973,10 @@
       "resolved": "packages/app",
       "link": true
     },
+    "node_modules/@paseo/relay": {
+      "resolved": "packages/relay",
+      "link": true
+    },
     "node_modules/@paseo/server": {
       "resolved": "packages/server",
       "link": true
@@ -21627,6 +21639,20 @@
         "react-native": "*"
       }
     },
+    "packages/relay": {
+      "name": "@paseo/relay",
+      "version": "0.1.0",
+      "dependencies": {
+        "ws": "^8.14.2"
+      },
+      "devDependencies": {
+        "@cloudflare/workers-types": "^4.20241230.0",
+        "@types/node": "^20.9.0",
+        "@types/ws": "^8.5.8",
+        "typescript": "^5.2.2",
+        "vitest": "^3.2.4"
+      }
+    },
     "packages/server": {
       "name": "@paseo/server",
       "version": "0.1.0",