feat(FN-2488): add terminal refresh fallbacks for terminal startup failures

- Add refresh-page actions alongside retry/reinitialize in TerminalModal bootstrap and xterm init error states
- Add terminal error action-group styling so multiple recovery buttons render cleanly
- Extend TerminalModal tests to cover new refresh controls and verify window reload behavior
- Remove unused TaskLogEntry import and drop the stale hooks eslint suppression in dashboard-tui app

packages/cli/src/commands/dashboard-tui/controller.ts

@@ -1,5 +1,6 @@
 import os from "node:os";
 import v8 from "node:v8";
+import { execSync } from "node:child_process";
 import { LogRingBuffer } from "./log-ring-buffer.js";
 import type { LogEntry } from "./log-ring-buffer.js";
 import type {