add default model (#1380)

Author: maekawataiki

packages/cdk/cdk.json

@@ -42,10 +42,13 @@
     "hiddenUseCases": {},
     "modelRegion": "us-east-1",
     "modelIds": [
+      "global.anthropic.claude-sonnet-4-5-20250929-v1:0",
+      "global.anthropic.claude-opus-4-5-20251101-v1:0",
       "us.anthropic.claude-sonnet-4-20250514-v1:0",
       "us.anthropic.claude-opus-4-20250514-v1:0",
       "us.anthropic.claude-3-7-sonnet-20250219-v1:0",
       "us.anthropic.claude-3-5-haiku-20241022-v1:0",
+      "global.amazon.nova-2-lite-v1:0",
       "us.amazon.nova-premier-v1:0",
       "us.amazon.nova-pro-v1:0",
       "us.amazon.nova-lite-v1:0",