feat(chat): switch to the conversation on send with a startup placeholder (TODO 08)

scripts/rea/probe-new-task-send-20261017.json

@@ -0,0 +1,17 @@
+{
+  "include_fonts": false,
+  "include_message_content": true,
+  "track_selectors": [
+    ".conversation-page-chrome__content",
+    ".conversation-input",
+    ".cr-input-editor-host",
+    ".cr-send-button"
+  ],
+  "actions": [
+    { "kind": "wait", "step_id": "wait-100ms", "duration_ms": 0, "frames": 1 },
+    { "kind": "wait", "step_id": "wait-300ms", "duration_ms": 200, "frames": 1 },
+    { "kind": "wait", "step_id": "wait-500ms", "duration_ms": 100, "frames": 1 },
+    { "kind": "wait", "step_id": "wait-1000ms", "duration_ms": 400, "frames": 1 },
+    { "kind": "wait", "step_id": "wait-2000ms", "duration_ms": 1000, "frames": 1 }
+  ]
+}