Fix a bunch of errors we had

packages/backend/eslint.config.ts

@@ -0,0 +1,10 @@
+import { defineConfig } from 'eslint/config';
+
+import { baseConfig } from '@gib/eslint-config/base';
+
+export default defineConfig(
+  {
+    ignores: ['convex/_generated/**', 'types/**', 'scripts/**', 'dist/**'],
+  },
+  baseConfig,
+);