feat: unified error handler with retry for transient errors

src/utils/errorHandler.ts

@@ -0,0 +1,25 @@
+import { useToastStore } from '../stores/toast'
+
+export function handleInvokeError(error: unknown, context: string, retryFn?: () => Promise<void>) {
+  const toastStore = useToastStore()
+  const message = error instanceof Error ? error.message : String(error)
+
+  console.error(`${context}:`, message)
+
+  const isTransient = /database is locked|connection|busy|timeout|network/i.test(message)
+
+  if (isTransient && retryFn) {
+    toastStore.error(`${context}. Tap Retry to try again.`, {
+      onUndo: async () => {
+        try {
+          await retryFn()
+          toastStore.success('Operation completed successfully')
+        } catch (retryError) {
+          handleInvokeError(retryError, context)
+        }
+      },
+    })
+  } else {
+    toastStore.error(context)
+  }
+}