Add Next.js admin panel and implement background worker jobs

- Add full Next.js admin panel with:
  - User, residence, task, contractor, document management
  - Notifications and notification preferences management
  - Subscriptions and auth token management
  - Dashboard with stats
  - Lookup tables management (categories, priorities, statuses, etc.)
  - Admin user management

- Implement background worker job handlers:
  - HandleTaskReminder: sends push notifications for tasks due within 24h
  - HandleOverdueReminder: sends push notifications for overdue tasks
  - HandleDailyDigest: sends daily summary of pending tasks
  - HandleSendEmail: processes email sending jobs
  - HandleSendPush: processes push notification jobs

- Make worker job schedules configurable via environment variables:
  - TASK_REMINDER_HOUR, TASK_REMINDER_MINUTE (default: 20:00 UTC)
  - OVERDUE_REMINDER_HOUR (default: 09:00 UTC)
  - DAILY_DIGEST_HOUR (default: 11:00 UTC)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

cmd/worker/main.go

@@ -13,6 +13,7 @@ import (
 	"github.com/treytartt/mycrib-api/internal/config"
 	"github.com/treytartt/mycrib-api/internal/database"
 	"github.com/treytartt/mycrib-api/internal/push"
+	"github.com/treytartt/mycrib-api/internal/services"
 	"github.com/treytartt/mycrib-api/internal/worker/jobs"
 	"github.com/treytartt/mycrib-api/pkg/utils"
 )
@@ -45,6 +46,13 @@ func main() {
 		log.Info().Str("url", cfg.Push.GorushURL).Msg("Gorush client initialized")
 	}
 
+	// Initialize email service (optional)
+	var emailService *services.EmailService
+	if cfg.Email.Host != "" {
+		emailService = services.NewEmailService(&cfg.Email)
+		log.Info().Str("host", cfg.Email.Host).Msg("Email service initialized")
+	}
+
 	// Parse Redis URL for Asynq
 	redisOpt, err := asynq.ParseRedisURI(cfg.Redis.URL)
 	if err != nil {
@@ -72,7 +80,7 @@ func main() {
 	)
 
 	// Create job handler
-	jobHandler := jobs.NewHandler(db, gorushClient, cfg)
+	jobHandler := jobs.NewHandler(db, gorushClient, emailService, cfg)
 
 	// Create Asynq mux and register handlers
 	mux := asynq.NewServeMux()