feat: complete reorganize-long-files cleanup

- Extract tool instance lifecycle endpoints (start/stop/restart/delete) from
  api/tool/tool_instances.py into new api/tool/tool_lifecycle.py.
- Register tool_lifecycle_router in main.py and api/tool/__init__.py.
- Extract inline WorkspaceDetailPage components into
  components/features/workspace/: detail header, tab bars, file/git/tools/settings
  panels. Slim page from ~446 to ~62 lines.
- Update OpenSpec reorganize-long-files tasks to reflect completed work and
  current source state; mark change completed.
- Regenerate project maps.

Quality gates: python3 -m py_compile (backend clean), npm run typecheck,
npm run lint, npm test -- --run (87 passed), pytest workspace integration
and unit tests (27 passed, 1 skipped).

apps/web/src/pages/WorkspaceDetailPage.test.tsx

@@ -1,5 +1,11 @@
 import "@testing-library/jest-dom/vitest";
-import { cleanup, fireEvent, render, screen, waitFor } from "@testing-library/react";
+import {
+	cleanup,
+	fireEvent,
+	render,
+	screen,
+	waitFor,
+} from "@testing-library/react";
 import { MemoryRouter, Routes, Route } from "react-router-dom";
 import { afterEach, describe, expect, it, vi } from "vitest";
 
@@ -117,7 +123,9 @@ describe("WorkspaceDetailPage", () => {
 		);
 
 		await waitFor(() => {
-			expect(screen.getByRole("tab", { name: /settings/i })).toBeInTheDocument();
+			expect(
+				screen.getByRole("tab", { name: /settings/i }),
+			).toBeInTheDocument();
 		});
 
 		fireEvent.click(screen.getByRole("tab", { name: /settings/i }));