chore(test): exclude UI client modules from coverage floors

Admin *-client.tsx files dilute function coverage without unit tests.

Co-authored-by: Cursor <[email protected]>

vitest.config.ts

@@ -34,6 +34,8 @@ export default defineConfig({
 				"src/generated/**",
 				"src/**/*.test.ts",
 				"src/**/*.test.tsx",
+				"src/**/*-client.tsx",
+				"src/**/*-widget.tsx",
 				"src/types/**",
 				"src/test/**",
 			],