feat(jobs): improve scheduled tasks with retry logic and queue cleanup

- Add retry configuration to CoolifyTask (3 tries, 600s timeout)
- Add retry configuration to ScheduledTaskJob (3 tries, configurable timeout)
- Add retry configuration to DatabaseBackupJob (2 tries)
- Implement exponential backoff for all jobs (30s, 60s, 120s intervals)
- Add failed() handlers with comprehensive error logging to scheduled-errors channel
- Add execution tracking: started_at, retry_count, duration (decimal), error_details
- Add configurable timeout field to scheduled tasks (60-3600s, default 300s)
- Update UI to include timeout configuration in task creation/editing forms
- Increase ScheduledJobManager lock expiration from 60s to 90s for high-load environments
- Implement safe queue cleanup with restart vs runtime modes
  - Restart mode: aggressive cleanup (marks all processing jobs as failed)
  - Runtime mode: conservative cleanup (only marks jobs >12h as failed, skips deployments)
- Add cleanup:redis --restart flag for system startup
- Integrate cleanup into Dev.php init() for development environment
- Increase scheduled-errors log retention from 7 to 14 days
- Create comprehensive test suite (unit and feature tests)
- Add TESTING_GUIDE.md with manual testing instructions

Fixes issues with jobs failing after single attempt and "attempted too many times" errors

resources/views/livewire/project/shared/scheduled-task/add.blade.php

@@ -4,6 +4,9 @@
     <x-forms.input placeholder="0 0 * * * or daily"
         helper="You can use every_minute, hourly, daily, weekly, monthly, yearly or a cron expression." id="frequency"
         label="Frequency" />
+    <x-forms.input type="number" placeholder="300" id="timeout"
+        helper="Maximum execution time in seconds (60-3600). Default is 300 seconds (5 minutes)."
+        label="Timeout (seconds)" />
     @if ($type === 'application')
         @if ($containerNames->count() > 1)
             <x-forms.select id="container" label="Container name">

resources/views/livewire/project/shared/scheduled-task/show.blade.php

@@ -35,6 +35,8 @@
                 <x-forms.input placeholder="Name" id="name" label="Name" required />
                 <x-forms.input placeholder="php artisan schedule:run" id="command" label="Command" required />
                 <x-forms.input placeholder="0 0 * * * or daily" id="frequency" label="Frequency" required />
+                <x-forms.input type="number" placeholder="300" id="timeout"
+                    helper="Maximum execution time in seconds (60-3600)." label="Timeout (seconds)" required />
                 @if ($type === 'application')
                     <x-forms.input placeholder="php"
                         helper="You can leave this empty if your resource only has one container." id="container"