Rebrand from Casera/MyCrib to honeyDue

Total rebrand across all Go API source files:
- Go module path: casera-api -> honeydue-api
- All imports updated (130+ files)
- Docker: containers, images, networks renamed
- Email templates: support email, noreply, icon URL
- Domains: casera.app/mycrib.treytartt.com -> honeyDue.treytartt.com
- Bundle IDs: com.tt.casera -> com.tt.honeyDue
- IAP product IDs updated
- Landing page, admin panel, config defaults
- Seeds, CI workflows, Makefile, docs
- Database table names preserved (no migration needed)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

internal/services/subscription_service.go

@@ -8,10 +8,10 @@ import (
 	"github.com/rs/zerolog/log"
 	"gorm.io/gorm"
 
-	"github.com/treytartt/casera-api/internal/apperrors"
-	"github.com/treytartt/casera-api/internal/config"
-	"github.com/treytartt/casera-api/internal/models"
-	"github.com/treytartt/casera-api/internal/repositories"
+	"github.com/treytartt/honeydue-api/internal/apperrors"
+	"github.com/treytartt/honeydue-api/internal/config"
+	"github.com/treytartt/honeydue-api/internal/models"
+	"github.com/treytartt/honeydue-api/internal/repositories"
 )
 
 // Subscription-related errors
@@ -35,10 +35,10 @@ var (
 // KnownSubscriptionIDs are the product IDs for Pro subscriptions
 // Update these to match your actual App Store Connect / Google Play Console product IDs
 var KnownSubscriptionIDs = []string{
-	"com.tt.casera.pro.monthly",
-	"com.tt.casera.pro.yearly",
-	"casera_pro_monthly",
-	"casera_pro_yearly",
+	"com.tt.honeyDue.pro.monthly",
+	"com.tt.honeyDue.pro.yearly",
+	"honeydue_pro_monthly",
+	"honeydue_pro_yearly",
 }
 
 // SubscriptionService handles subscription business logic