[Feat] Worker error tracking

[RichardAnderson]

This pull request introduces several improvements and refactors to worker management, especially around error handling, status reporting, and worker restarts. The changes add more robust error tracking for workers, centralize worker restart logic, and enhance the visibility of worker status and errors throughout the application.

[Copilot]

Pull request overview

Adds persistent worker error tracking (DB + API), surfaces worker failures as site warnings/UI indicators, and centralizes restart/failure handling so worker restarts during deploy and manual actions record/report errors consistently.

Changes:

• Persist and expose workers.error across API resources, OpenAPI schema, and TS types; show errors in multiple UI surfaces.
• Centralize worker failure handling via HandlesWorkerFailure and introduce RestartSiteWorkers to restart workers during deploy with per-worker failure capture.
• Expand site warning logic to include worker_not_running warnings and ensure key web pages preload workers for warning generation.

Reviewed changes

Copilot reviewed 37 out of 39 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/Feature/WorkersTest.php	Adds coverage for supervisor reread/update on start and optimistic error clearing.
tests/Feature/WarningsBroadcastTest.php	Adds coverage for new worker-related site warnings (proxied + non-proxied).
tests/Feature/SiteSettingsProxiedSiteTest.php	Covers “update start command + restart now” behavior.
tests/Feature/RestartSiteWorkersTest.php	New tests for deploy-time worker restart behavior and error persistence.
tests/Feature/Jobs/WorkerJobsTest.php	Updates failure expectations and tests error extraction + resource exposure.
resources/views/ssh/services/process-manager/supervisor/stop-worker.blade.php	Captures supervisor output and flags failures for parsing/logging.
resources/views/ssh/services/process-manager/supervisor/start-worker.blade.php	Adds reread/update before start and captures output for error extraction.
resources/views/ssh/services/process-manager/supervisor/restart-workers.blade.php	Removes bulk restart script (restart now handled per-worker in PHP).
resources/views/ssh/services/process-manager/supervisor/restart-worker.blade.php	Captures output and flags failures consistently.
resources/views/ssh/services/process-manager/supervisor/create-worker.blade.php	Captures output and flags failures consistently during create.
resources/js/types/worker.d.ts	Adds error field to the Worker TS type.
resources/js/types/site.d.ts	Extends SiteWarning union with worker_not_running shape.
resources/js/pages/workers/components/columns.tsx	Displays an error indicator next to worker status in the table.
resources/js/pages/site-settings/components/start-command.tsx	Adds apply-choice UX (config-only vs restart-now) when a bootstrap worker exists.
resources/js/pages/hosted-domains/index.tsx	Reuses shared ErrorIndicator component (removes inline copy).
resources/js/pages/application/components/proxied-app-card.tsx	Shows worker error indicator in the proxied app card header.
resources/js/components/site-banners.tsx	Renders worker warnings as banners with status + error details and CTA.
resources/js/components/error-indicator.tsx	New shared tooltip-based error indicator component.
resources/js/components/banners.tsx	Allows richer banner descriptions by switching wrapper from <p> to <div>.
public/api-docs/openapi/schemas/Worker.yaml	Updates status enum and documents new error field.
database/migrations/2026_05_25_123252_add_error_to_workers_table.php	Adds nullable error column to workers.
app/Traits/HandlesWorkerFailure.php	New shared failure handler (extracts supervisor error lines, broadcasts updates).
app/Tables/SiteTable.php	Eager-loads workers so site warnings can include worker state.
app/Services/ProcessManager/Supervisor.php	Removes restartByIds implementation (no longer used).
app/Services/ProcessManager/ProcessManager.php	Removes restartByIds from the interface.
app/Models/Worker.php	Makes error mass-assignable and documents it.
app/Models/Site.php	Adds worker-derived warnings and bootstrap worker id parsing.
app/Jobs/Worker/ManageJob.php	Clears error on success; uses shared failure handler; broadcasts site updates.
app/Jobs/Worker/EditJob.php	Clears error on success; uses shared failure handler; broadcasts site updates.
app/Jobs/Worker/CreateJob.php	Keeps failed worker (with error) instead of deleting; uses shared failure handler.
app/Jobs/Site/DeployJob.php	Uses RestartSiteWorkers instead of removed bulk restart-by-ids call.
app/Http/Resources/WorkerResource.php	Exposes error field.
app/Http/Middleware/HandleInertiaRequests.php	Loads workers for site props so warnings can include worker info.
app/Http/Controllers/SiteSettingController.php	Adds flash messaging for “start command updated + restarting”.
app/Actions/Worker/RestartSiteWorkers.php	New action: restart each worker and record failures without aborting the deploy flow.
app/Actions/Worker/ManageWorker.php	Clears error optimistically when transitioning to starting/stopping/restarting.
app/Actions/Worker/EditWorker.php	Clears error when editing (restarting) a worker.
app/Actions/Site/UpdateStartCommand.php	Adds optional restart behavior and a new result enum case.
app/Actions/Site/BroadcastSiteUpdate.php	Loads workers for accurate warning computation in broadcasts.