feat: extract groombook/web from monorepo

- Copy apps/web/ with all src, components, pages, portal
- Inline packages/types/ as local packages/types module
- Add tsconfig path aliases for @groombook/types
- Port Dockerfile and CI workflow
- Image name: ghcr.io/groombook/web

Co-Authored-By: Paperclip <noreply@paperclip.ing>

eslint.config.js

@@ -0,0 +1,18 @@
+import tseslint from "typescript-eslint";
+
+export default tseslint.config(
+  {
+    ignores: [
+      // Untracked .js files containing JSX (build artifacts)
+      "src/**/*.js",
+      "src/**/*.jsx",
+    ],
+  },
+  ...tseslint.configs.recommended,
+  {
+    rules: {
+      "@typescript-eslint/no-explicit-any": "warn",
+      "@typescript-eslint/no-unused-vars": ["error", { argsIgnorePattern: "^_" }],
+    },
+  }
+);