feat(secubox-core): sync mailinabox plugin catalog with main catalog for consistency

Updated secubox-app-mailinabox plugin catalog to match the main catalog.json entry.

Changes to plugin catalog (plugins/catalog/secubox-app-mailinabox.json):
- category: "productivity" → "hosting" (more accurate classification)
- min_storage_mb: 1024 → 2048 (realistic for email server with attachments)
- status: "stable" → "beta" (matches maturity level)
- tags: added "hosting" tag
- capabilities: added "hosting" capability
- notes: added "Port 25 must be accessible" (important for email server)

Context:
SecuBox uses two catalog sources:
1. Main catalog.json - Used by get_appstore_apps RPCD method for Apps Manager UI
2. Individual plugin catalogs - Used by secubox-appstore CLI for package detection

This ensures both sources provide consistent metadata.

Integration with luci-app-secubox-admin:
✅ secubox-app-mailinabox is now fully integrated into the admin interface
✅ Installation detection works automatically via opkg package checking
✅ Apps Manager will show:
   - "Install" button if package not installed
   - "Configure" and "Remove" buttons if package is installed
✅ Status detection flow:
   1. API.getApps() → reads main catalog.json
   2. API.getModules() → calls secubox-appstore list --json
   3. secubox-appstore checks if secubox-app-mailinabox is installed via opkg
   4. Returns status in modules list
   5. Frontend displays appropriate buttons based on status

Also incremented PKG_RELEASE: 4 → 5

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

package/secubox/secubox-core/Makefile

@@ -6,7 +6,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=secubox-core
 PKG_VERSION:=0.8.0
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 PKG_ARCH:=all
 PKG_LICENSE:=GPL-2.0
 PKG_MAINTAINER:=SecuBox Team

package/secubox/secubox-core/root/usr/share/secubox/plugins/catalog/secubox-app-mailinabox.json

@@ -2,19 +2,20 @@
   "id": "secubox-app-mailinabox",
   "name": "Mail-in-a-Box",
   "version": "70.0",
-  "category": "productivity",
+  "category": "hosting",
   "runtime": "docker",
   "description": "Easy-to-deploy email server with webmail, contacts, calendar, spam filtering, and automatic security updates",
   "author": "CyberMind.fr",
   "license": "CC0-1.0",
   "url": "https://mailinabox.email/",
-  "icon": "\ud83d\udce7",
+  "icon": "📧",
   "tags": [
     "email",
     "mail-server",
     "webmail",
     "calendar",
     "contacts",
+    "hosting",
     "docker"
   ],
   "packages": {
@@ -27,16 +28,17 @@
   "capabilities": [
     "email",
     "mail-server",
-    "webmail"
+    "webmail",
+    "hosting"
   ],
   "requirements": {
     "min_ram_mb": 768,
-    "min_storage_mb": 1024
+    "min_storage_mb": 2048
   },
-  "status": "stable",
+  "status": "beta",
   "conflicts": [
     "citadel",
     "ispconfig"
   ],
-  "notes": "Requires a domain name with proper DNS configuration. Includes webmail, spam filtering, and automatic TLS."
-}
+  "notes": "Requires a domain name with proper DNS configuration. Includes webmail, spam filtering, and automatic TLS. Port 25 must be accessible."
+}