feat: Claude Code Monitor — lanes, pipelines and a merged workspace

Internal SmartGift build of a Claude Code monitoring dashboard.

Lanes: a durable unit of parallel agent work, one per working directory,
tracked across session restarts. Managed lanes are git worktrees the
dashboard provisions and can reset or remove behind a three-check destroy
guard and a counted preflight; adopted lanes are directories you already
own and are never destroyable.

Pipelines: a lane moves through pipeline stages. A stage the agent declares
with evidence renders green; a stage inferred from the tool-event stream
renders dashed amber and never counts as done. Detection is forward-only
within a 30-minute window, and never writes the declared stage.

Workspace: one page at /run with a lane grid, the selected lane's pipeline,
and a full Claude console behind a disclosure.

client/vitest.config.ts

@@ -0,0 +1,39 @@
+/**
+ * @file vitest.config.ts
+ * @description Vitest configuration for the client test suite — jsdom environment, React plugin, test globals, and the same build-time `__APP_VERSION__` injection as vite.config.ts so version-dependent components render identically under test.
+ * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
+ */
+
+import { readFileSync } from "node:fs";
+import { resolve } from "node:path";
+import { defineConfig } from "vitest/config";
+import react from "@vitejs/plugin-react";
+
+// Mirror vite.config.ts: inject the repo-root project version as `__APP_VERSION__`
+// so components that render it (e.g. the sidebar footer) behave the same in tests.
+// Fail-safe resolution (root -> client -> placeholder) matches vite.config.ts.
+function resolveAppVersion(): string {
+  for (const rel of ["../package.json", "package.json"]) {
+    try {
+      const { version } = JSON.parse(readFileSync(resolve(process.cwd(), rel), "utf8"));
+      if (version) return version as string;
+    } catch {
+      // Not found or unreadable at this path — try the next candidate.
+    }
+  }
+  return "0.0.0";
+}
+const APP_VERSION = resolveAppVersion();
+
+export default defineConfig({
+  plugins: [react()],
+  define: {
+    __APP_VERSION__: JSON.stringify(APP_VERSION),
+  },
+  test: {
+    environment: "jsdom",
+    setupFiles: ["./src/test-setup.ts"],
+    include: ["src/**/*.test.{ts,tsx}"],
+    css: false,
+  },
+});