Neon / portal template support (#713)

TODOs:
- [x] Do restart when checkout / restore if there is a DB
- [x] List all branches (branch id, name, date)
- [x] Allow checking out versions with no DB
- [x] safeguard to never delete main branches
- [x] create app hook for neon template
- [x] weird UX with connector on configure panel
- [x] tiny neon logo in connector
- [x] deploy to vercel
- [x] build forgot password page
- [x] what about email setup
- [x] lots of imgix errors
- [x] edit file - db snapshot
- [x] DYAD_DISABLE_DB_PUSH
- [ ] update portal doc
- [x] switch preview branch to be read-only endpoint
- [x] disable supabase sys prompt if neon is enabled
- [ ] https://payloadcms.com/docs/upload/storage-adapters
- [x] need to use main branch...

Phase 2?
- [x] generate DB migrations

src/hooks/useCreateApp.ts

@@ -0,0 +1,38 @@
+import { useMutation, useQueryClient } from "@tanstack/react-query";
+import { IpcClient } from "@/ipc/ipc_client";
+import { showError } from "@/lib/toast";
+import type { CreateAppParams, CreateAppResult } from "@/ipc/ipc_types";
+
+export function useCreateApp() {
+  const queryClient = useQueryClient();
+
+  const mutation = useMutation<CreateAppResult, Error, CreateAppParams>({
+    mutationFn: async (params: CreateAppParams) => {
+      if (!params.name.trim()) {
+        throw new Error("App name is required");
+      }
+
+      const ipcClient = IpcClient.getInstance();
+      return ipcClient.createApp(params);
+    },
+    onSuccess: () => {
+      // Invalidate apps list to trigger refetch
+      queryClient.invalidateQueries({ queryKey: ["apps"] });
+    },
+    onError: (error) => {
+      showError(error);
+    },
+  });
+
+  const createApp = async (
+    params: CreateAppParams,
+  ): Promise<CreateAppResult> => {
+    return mutation.mutateAsync(params);
+  };
+
+  return {
+    createApp,
+    isCreating: mutation.isPending,
+    error: mutation.error,
+  };
+}