Harden SQLite migration and apply post-merge fixes

Migration hardening:
- Back up JSON to $PASEO_HOME/backup/pre-migration/ before import
- Deduplicate projects/workspaces by path before insert
- Log per-batch progress during agent snapshot import
- Clear error messages for corrupt JSON files
- 5 new test cases for backup, dedup, progress, and error clarity

Post-merge fixes:
- Add worktreeRoot to session checkout result (type error fix)
- Port reload agent tab action from main
- Remove deleted useDelayedHistoryRefreshToast hook usage

packages/app/src/screens/workspace/workspace-desktop-tabs-row.tsx

@@ -66,6 +66,7 @@ type WorkspaceDesktopTabsRowProps = {
   onCloseTab: (tabId: string) => Promise<void> | void;
   onCopyResumeCommand: (agentId: string) => Promise<void> | void;
   onCopyAgentId: (agentId: string) => Promise<void> | void;
+  onReloadAgent: (agentId: string) => Promise<void> | void;
   onCloseTabsToLeft: (tabId: string) => Promise<void> | void;
   onCloseTabsToRight: (tabId: string) => Promise<void> | void;
   onCloseOtherTabs: (tabId: string) => Promise<void> | void;
@@ -332,6 +333,7 @@ export function WorkspaceDesktopTabsRow({
   onCloseTab,
   onCopyResumeCommand,
   onCopyAgentId,
+  onReloadAgent,
   onCloseTabsToLeft,
   onCloseTabsToRight,
   onCloseOtherTabs,
@@ -453,6 +455,7 @@ export function WorkspaceDesktopTabsRow({
                 normalizedWorkspaceId={normalizedWorkspaceId}
                 onCopyResumeCommand={onCopyResumeCommand}
                 onCopyAgentId={onCopyAgentId}
+                onReloadAgent={onReloadAgent}
                 onCloseTabsToLeft={onCloseTabsToLeft}
                 onCloseTabsToRight={onCloseTabsToRight}
                 onCloseOtherTabs={onCloseOtherTabs}
@@ -583,6 +586,7 @@ function ResolvedDesktopTabChip({
   normalizedWorkspaceId,
   onCopyResumeCommand,
   onCopyAgentId,
+  onReloadAgent,
   onCloseTabsToLeft,
   onCloseTabsToRight,
   onCloseOtherTabs,
@@ -606,6 +610,7 @@ function ResolvedDesktopTabChip({
   normalizedWorkspaceId: string;
   onCopyResumeCommand: (agentId: string) => Promise<void> | void;
   onCopyAgentId: (agentId: string) => Promise<void> | void;
+  onReloadAgent: (agentId: string) => Promise<void> | void;
   onCloseTabsToLeft: (tabId: string) => Promise<void> | void;
   onCloseTabsToRight: (tabId: string) => Promise<void> | void;
   onCloseOtherTabs: (tabId: string) => Promise<void> | void;
@@ -628,6 +633,7 @@ function ResolvedDesktopTabChip({
         tabCount,
         onCopyResumeCommand,
         onCopyAgentId,
+        onReloadAgent,
         onCloseTab,
         onCloseTabsToLeft,
         onCloseTabsToRight,
@@ -642,6 +648,7 @@ function ResolvedDesktopTabChip({
       onCloseTabsToRight,
       onCopyAgentId,
       onCopyResumeCommand,
+      onReloadAgent,
       tabCount,
     ],
   );