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>

deploy/swarm-stack.prod.yml

@@ -19,7 +19,7 @@ services:
       placement:
         max_replicas_per_node: 1
     networks:
-      - casera-network
+      - honeydue-network
 
   api:
     image: ${API_IMAGE}
@@ -129,7 +129,7 @@ services:
         delay: 5s
         order: stop-first
     networks:
-      - casera-network
+      - honeydue-network
 
   admin:
     image: ${ADMIN_IMAGE}
@@ -161,7 +161,7 @@ services:
         delay: 5s
         order: stop-first
     networks:
-      - casera-network
+      - honeydue-network
 
   worker:
     image: ${WORKER_IMAGE}
@@ -236,7 +236,7 @@ services:
         delay: 5s
         order: stop-first
     networks:
-      - casera-network
+      - honeydue-network
 
   dozzle:
     image: amir20/dozzle:latest
@@ -258,14 +258,14 @@ services:
         constraints:
           - node.role == manager
     networks:
-      - casera-network
+      - honeydue-network
 
 volumes:
   redis_data:
   uploads:
 
 networks:
-  casera-network:
+  honeydue-network:
     driver: overlay
     driver_opts:
       encrypted: "true"