Address PR #1229 code review feedback

- ToolsScreen.fixtures.ts: replace empty `{}` schemas in query_database
  params and post_request body with explicit `type` for consistency
- ToolControls WithSearch story: add play function that types "git" so
  the story actually demonstrates filtering
- ResourcesScreen stories: comment expandUserProfileTemplate to document
  the userId/readUserProfileState.uri coupling

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

clients/web/src/components/groups/ToolControls/ToolControls.stories.tsx

@@ -1,5 +1,5 @@
 import type { Meta, StoryObj } from "@storybook/react-vite";
-import { fn } from "storybook/test";
+import { fn, userEvent, within } from "storybook/test";
 import { ToolControls } from "./ToolControls";
 import { longToolList } from "../../screens/ToolsScreen/ToolsScreen.fixtures";
 
@@ -33,6 +33,13 @@ export const WithSearch: Story = {
   args: {
     tools: longToolList,
   },
+  play: async ({ canvasElement }) => {
+    const canvas = within(canvasElement);
+    await userEvent.type(
+      await canvas.findByPlaceholderText("Search tools..."),
+      "git",
+    );
+  },
 };
 
 export const ListChanged: Story = {