Upgrade Storybook to version 9

Signed-off-by: Charles de Dreuille <charles.dedreuille@gmail.com>

.storybook/msw-browser-shim.js

@@ -0,0 +1,47 @@
+// MSW v2 browser compatibility shim for @vitest/mocker
+// This provides MSW v2 exports using MSW v1 APIs to maintain compatibility
+// while keeping the rest of the monorepo on MSW v1
+
+try {
+  // Try to import from MSW v1
+  const { setupWorker, rest } = require('msw');
+
+  // Export in MSW v2 format expected by @vitest/mocker
+  module.exports = {
+    setupWorker,
+    // MSW v2 uses 'http' instead of 'rest', but we provide both for compatibility
+    http: rest,
+    rest, // Keep rest for any MSW v1 code
+  };
+} catch (error) {
+  // Fallback if MSW is not available - provide minimal mock
+  console.warn(
+    'MSW not available, providing minimal mock for @vitest/mocker compatibility',
+  );
+  module.exports = {
+    setupWorker: () => ({
+      start: () => Promise.resolve(),
+      stop: () => {},
+      use: () => {},
+      resetHandlers: () => {},
+    }),
+    http: {
+      get: () => {},
+      post: () => {},
+      put: () => {},
+      delete: () => {},
+      patch: () => {},
+      head: () => {},
+      options: () => {},
+    },
+    rest: {
+      get: () => {},
+      post: () => {},
+      put: () => {},
+      delete: () => {},
+      patch: () => {},
+      head: () => {},
+      options: () => {},
+    },
+  };
+}