Postgres support (DB_* env), LoginEvent audit table, Choice.value 300, deploy.sh pg_dump backup

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

accounts/admin.py

@@ -8,7 +8,7 @@ from django.core.exceptions import PermissionDenied
 from django.shortcuts import render
 from django.utils import timezone
 
-from .models import OTPCode, Profile, Session, User
+from .models import LoginEvent, OTPCode, Profile, Session, User
 from .services import SMSDeliveryError, get_inactive_users, send_sms
 
 
@@ -284,3 +284,21 @@ admin.site.unregister(get_user_model())
 admin.site.register(get_user_model(), StaffUserAdmin)
 admin.site.unregister(Group)
 admin.site.register(Group, StaffGroupAdmin)
+
+
+@admin.register(LoginEvent)
+class LoginEventAdmin(admin.ModelAdmin):
+    """سابقه‌ی ورود/خروج؛ فقط‌خواندنی (سابقه نباید از پنل عوض شود)."""
+    list_display = ('created_at', 'event', 'user_id', 'phone', 'ip')
+    list_filter = ('event', 'created_at')
+    search_fields = ('phone', 'user_id', 'ip')
+    date_hierarchy = 'created_at'
+
+    def has_add_permission(self, request):
+        return False
+
+    def has_change_permission(self, request, obj=None):
+        return False
+
+    def has_delete_permission(self, request, obj=None):
+        return False