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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package-lock.json

@@ -21246,6 +21246,7 @@
         "@lezer/json": "^1.0.3",
         "@lezer/markdown": "^1.6.2",
         "@lezer/python": "^1.1.18",
+        "@paseo/server": "*",
         "@react-native-async-storage/async-storage": "2.2.0",
         "@react-navigation/bottom-tabs": "^7.4.0",
         "@react-navigation/elements": "^2.6.3",