feat: make each plugin an npm workspace built by a termix-plugin CLI

packages/plugin-sdk/src/testing/setup.ts

@@ -0,0 +1,68 @@
+/**
+ * Shared vitest setup for core and for every plugin suite.
+ *
+ * The root vitest.setup.ts re-exports this so there is one copy of the
+ * polyfills rather than two that drift apart.
+ */
+
+import { afterEach, vi } from "vitest";
+
+if (typeof window !== "undefined" && !window.matchMedia) {
+  window.matchMedia = vi.fn().mockImplementation((query: string) => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addEventListener: vi.fn(),
+    removeEventListener: vi.fn(),
+    addListener: vi.fn(),
+    removeListener: vi.fn(),
+    dispatchEvent: vi.fn(),
+  }));
+}
+
+/**
+ * jsdom in this project ships without a `localStorage` global, and Node only
+ * provides one when started with --localstorage-file (which persists to disk
+ * and is shared across test files -- both wrong for tests). Suites that touch
+ * storage therefore threw `Cannot read properties of undefined`, taking out
+ * every test in the file rather than just the ones that used it.
+ *
+ * A per-process in-memory implementation is enough: it satisfies the Storage
+ * interface the app uses and keeps nothing on disk.
+ */
+if (typeof globalThis.localStorage === "undefined") {
+  const createMemoryStorage = (): Storage => {
+    const store = new Map<string, string>();
+    return {
+      get length() {
+        return store.size;
+      },
+      key: (index: number) => Array.from(store.keys())[index] ?? null,
+      getItem: (key: string) => (store.has(key) ? store.get(key)! : null),
+      setItem: (key: string, value: string) => {
+        store.set(key, String(value));
+      },
+      removeItem: (key: string) => {
+        store.delete(key);
+      },
+      clear: () => {
+        store.clear();
+      },
+    } as Storage;
+  };
+
+  Object.defineProperty(globalThis, "localStorage", {
+    value: createMemoryStorage(),
+    configurable: true,
+    writable: true,
+  });
+  Object.defineProperty(globalThis, "sessionStorage", {
+    value: createMemoryStorage(),
+    configurable: true,
+    writable: true,
+  });
+}
+
+afterEach(() => {
+  vi.restoreAllMocks();
+});