ui: Update vulnerable packages + cleanup Storybook config (#26607)

* chore: Upgrade Storybook

* chore: Bump package-lock

* chore: bump vitest to 4.1.10

* ui: bump fast-uri to 3.1.5

* ui: bump ip-address to 10.4.0

* ui: bump js-yaml to 4.3.1

* ui: bump immutable to 5.1.9

* ui: bump postcss to 8.5.25

* ui: bump brace-expansion to safe versions

* ui: bump sharp to 0.35.3 via override

* ui: bump body-parser to 2.3.0

* ui: bump vite to 7.3.6 and esbuild to 0.28.1

Assisted-by: Claude Sonnet

* ui: bump hono to 4.13.0

* ui: bump dompurify to 3.4.13

* ui: bump @sveltejs/kit to 2.70.2

* ui: bump @modelcontextprotocol/sdk to 1.30.0

* ui: bump valibot to 1.4.2 via override

* chore: Remove legacy setup file

* refactor: Nits cleanup

tools/ui/.storybook/main.ts

@@ -11,7 +11,8 @@ const config: StorybookConfig = {
 		'@chromatic-com/storybook',
 		'@storybook/addon-vitest',
 		'@storybook/addon-a11y',
-		'@storybook/addon-docs'
+		'@storybook/addon-docs',
+		'@storybook/addon-mcp'
 	],
 	framework: '@storybook/sveltekit',
 	viteFinal: async (config) => {