Replace reconnecting badge with pull-to-refresh

UX improvements:
- Remove misleading "Reconnecting..." badge overlay
- Implement native pull-to-refresh gesture on agent list
- Add manual refresh capability via pull gesture

Technical changes:
- Add refreshSession() method to session context
- Add refreshAll() to useAggregatedAgents hook
- Integrate RefreshControl in AgentList component
- Use isRevalidating state for refresh indicator
- Apply theme colors to RefreshControl for consistency

Benefits:
- Familiar iOS/Android UX pattern
- No UI overlays blocking content
- Clear user action (pull) → clear feedback (refresh)
- Accurate state representation (syncing vs reconnecting)

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

Co-Authored-By: Claude <noreply@anthropic.com>

packages/app/src/hooks/use-aggregated-agents.ts

@@ -1,4 +1,4 @@
-import { useMemo } from "react";
+import { useMemo, useCallback } from "react";
 import { useDaemonConnections } from "@/contexts/daemon-connections-context";
 import { useSessionStore } from "@/stores/session-store";
 import type { AgentDirectoryEntry } from "@/types/agent-directory";
@@ -13,13 +13,24 @@ export interface AggregatedAgentsResult {
   isLoading: boolean;
   isInitialLoad: boolean;
   isRevalidating: boolean;
+  refreshAll: () => void;
 }
 
 export function useAggregatedAgents(): AggregatedAgentsResult {
   const { connectionStates } = useDaemonConnections();
   const sessions = useSessionStore((state) => state.sessions);
 
-  return useMemo(() => {
+  const refreshAll = useCallback(() => {
+    console.log('[useAggregatedAgents] Manual refresh triggered for all sessions');
+    for (const [serverId, session] of Object.entries(sessions)) {
+      if (session?.methods?.refreshSession) {
+        console.log(`[useAggregatedAgents] Refreshing session ${serverId}`);
+        session.methods.refreshSession();
+      }
+    }
+  }, [sessions]);
+
+  const result = useMemo(() => {
     const allAgents: AggregatedAgent[] = [];
 
     // Derive agent directory from all sessions
@@ -124,4 +135,9 @@ export function useAggregatedAgents(): AggregatedAgentsResult {
       isRevalidating,
     };
   }, [sessions, connectionStates]);
+
+  return {
+    ...result,
+    refreshAll,
+  };
 }

packages/app/src/hooks/use-daemon-session.ts

@@ -30,6 +30,7 @@ export type DaemonSession = SessionState & {
   restartServer: (reason?: string) => void;
   initializeAgent: (params: { agentId: string; requestId?: string }) => void;
   refreshAgent: (params: { agentId: string; requestId?: string }) => void;
+  refreshSession: () => void;
   cancelAgentRun: (agentId: string) => void;
   sendAgentMessage: (
     agentId: string,