Release AI runtime availability fix

[roncodes]

Summary

• Bumps @fleetbase/ai-engine to 0.0.2.
• Upgrades @fleetbase/ember-ui to ^0.3.41 and refreshes pnpm-lock.yaml.
• Adds a non-admin runtime status endpoint so authenticated users can see/use the AI prompt when Fleetbase AI is enabled.
• Keeps provider config/admin metadata behind the existing admin config endpoint.
• Adds server-side guards so disabled AI blocks task creation, preview, and apply requests.

Validation

• php -l server/src/Http/Controllers/Internal/AiConfigController.php
• php -l server/src/Http/Controllers/Internal/AiTaskController.php
• php -l server/src/routes.php
• CI=true pnpm --dir packages/ai exec eslint addon/services/ai.js addon/components/ai-header-tray-button.js
• git diff --cached --check