feat: add project-aware agent workspace

src/app/app.e2e.ts

@@ -95,7 +95,7 @@ test("preserves compact typography in header and agent controls", async ({ page
   await expect(approvalControl).toHaveCSS("font-size", "12px");
   await expect(approvalControl).toHaveCSS("line-height", "16px");
   await expect(suggestion).toHaveCSS("font-size", "12px");
-  await expect(suggestion).toHaveCSS("font-weight", "600");
+  await expect(suggestion).toHaveCSS("font-weight", "400");
 });
 
 test("lets interactive utilities override surface materials", async ({ page }) => {
@@ -138,7 +138,7 @@ test("keeps menu origin and the solid Main Frame styling through Tailwind v4", a
     };
   });
   expect(navigationMaterial.backdropFilter).toBe("none");
-  expect(navigationMaterial.backgroundColor).toBe(await readThemeColor(navigation, "--agent-dock-surface"));
+  expect(navigationMaterial.backgroundColor).toBe(await readThemeColor(navigation, "--surface-navigation"));
   await expect(page.locator("#main-workspace")).toHaveAttribute("data-layout-mode", "default");
   await expect(page.getByRole("toolbar", { name: "工作区窗口任务栏" })).toHaveCount(0);
 });