feat: add task management CLI and improve activity curation

- Add task store with dependency tracking and CLI (packages/server/src/tasks/)
- Extract principal param logic to shared util for server/app reuse
- Improve activity curator: collapse timeline, dedupe tool calls, simpler output
- Add MessageInput ref for focus control after agent cancel
- Include recent activity in wait timeout messages

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packages/app/package.json

@@ -15,6 +15,7 @@
     "test": "vitest run"
   },
   "dependencies": {
+    "@paseo/server": "*",
     "@boudra/expo-two-way-audio": "^0.1.3",
     "@expo/vector-icons": "^15.0.2",
     "@gorhom/bottom-sheet": "^5.2.6",