feat: persist permission auto-accept on server (#2158)

Move per-session permission auto-accept policy ownership from the UI to the
OpenChamber server so enabled sessions continue running when clients disconnect
or the server restarts.

- persist explicit per-session policies in OpenChamber settings
- inherit the nearest explicit policy across subagent session hierarchies
- allow child sessions to opt out of an inherited parent policy
- immediately accept matching global and directory-scoped pending requests
- process future requests without requiring a connected UI client
- reconcile pending permissions after startup and event-stream reconnects
- deduplicate concurrent requests and retry transient reply failures
- synchronize policy updates across connected clients
- migrate existing browser-persisted policies to server storage
- suppress auto-accepted permission cards before they enter UI state
- show deduplicated permission toasts for inactive sessions
- preserve foreground-only permission handling in VS Code
- integrate directory-aware notification routing from main
- add coverage for persistence, inheritance, retries, reconciliation, pending
  requests, client hydration, and inactive-session toasts

packages/ui/src/apps/runtimeEndpointReset.ts

@@ -6,6 +6,7 @@ import { useProjectsStore } from '@/stores/useProjectsStore';
 import { useGlobalSessionsStore } from '@/stores/useGlobalSessionsStore';
 import { useAutoReviewStore } from '@/stores/useAutoReviewStore';
 import { useUIStore } from '@/stores/useUIStore';
+import { usePermissionStore } from '@/stores/permissionStore';
 import { useSessionUIStore } from '@/sync/session-ui-store';
 import { resetStreamingState } from '@/sync/streaming';
 
@@ -43,6 +44,7 @@ export const resetAppForRuntimeEndpointChange = (detail: RuntimeEndpointChangedD
   // Cross-project session list (mobile sessions sheet & co) belongs to the
   // previous instance — drop it so stale sessions can't linger after a switch.
   useGlobalSessionsStore.getState().resetForRuntimeSwitch();
+  usePermissionStore.getState().reset();
   useSessionUIStore.getState().restoreForRuntimeSwitch(detail.runtimeKey);
   useUIStore.getState().restoreForRuntimeSwitch(detail.runtimeKey);
   resetStreamingState();