feat: add ai model alias configuration

apps/ai/management/__init__.py

@@ -0,0 +1 @@
+

apps/ai/management/commands/__init__.py

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+

apps/ai/management/commands/import_ai_models.py

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+import json
+from pathlib import Path
+
+from django.core.management.base import BaseCommand, CommandError
+
+from apps.ai.importers import import_ai_models_config
+
+
+class Command(BaseCommand):
+    help = "Import cmbot-style ai_models.json into encrypted AiModel records."
+
+    def add_arguments(self, parser):
+        parser.add_argument("path", help="Path to ai_models.json.")
+        parser.add_argument(
+            "--create-default-aliases",
+            action="store_true",
+            help="Create title-standard and image-standard default aliases when possible.",
+        )
+
+    def handle(self, *args, **options):
+        path = Path(options["path"])
+        if not path.exists():
+            raise CommandError(f"File not found: {path}")
+
+        try:
+            config = json.loads(path.read_text(encoding="utf-8-sig"))
+            result = import_ai_models_config(
+                config,
+                create_default_aliases=options["create_default_aliases"],
+            )
+        except Exception as exc:
+            raise CommandError(str(exc)) from exc
+
+        self.stdout.write(
+            self.style.SUCCESS(
+                "Imported AI models: "
+                f"created={result['created']}, "
+                f"updated={result['updated']}, "
+                f"aliases={result['aliases']}"
+            )
+        )