chore(proxy): resync the generated API artifacts with the current models (#38587)

Two lazily loaded models changed without their generated artifacts being
regenerated, so check-ui-api-types has been red on every branch off staging.

The snapshot that /openapi.json serves for unloaded features was missing
ChatCompletionToolReferenceObject, and the dashboard types were missing
aws_external_id. The snapshot step runs first and short-circuits, so only the
first one was visible until it was fixed.

Both files are regenerated with `python -m litellm.proxy._lazy_openapi_snapshot`
and `npm run gen:api`, no hand edits.

litellm/proxy/_lazy_openapi_snapshot.json

@@ -10238,6 +10238,18 @@
               "description": "AWS Bedrock runtime endpoint URL",
               "title": "Aws Bedrock Runtime Endpoint"
             },
+            "aws_external_id": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ],
+              "description": "External ID required by the target role's trust policy on sts:AssumeRole",
+              "title": "Aws External Id"
+            },
             "aws_profile_name": {
               "anyOf": [
                 {
@@ -25237,6 +25249,9 @@
                       },
                       {
                         "$ref": "#/components/schemas/ChatCompletionImageObject"
+                      },
+                      {
+                        "$ref": "#/components/schemas/ChatCompletionToolReferenceObject"
                       }
                     ]
                   },
@@ -25324,6 +25339,26 @@
           "title": "ChatCompletionToolParamFunctionChunk",
           "type": "object"
         },
+        "ChatCompletionToolReferenceObject": {
+          "description": "Anthropic tool-search result block, carried through untouched so it survives a round trip.",
+          "properties": {
+            "tool_name": {
+              "title": "Tool Name",
+              "type": "string"
+            },
+            "type": {
+              "const": "tool_reference",
+              "title": "Type",
+              "type": "string"
+            }
+          },
+          "required": [
+            "type",
+            "tool_name"
+          ],
+          "title": "ChatCompletionToolReferenceObject",
+          "type": "object"
+        },
         "ChatCompletionUserMessage": {
           "properties": {
             "cache_control": {

ui/litellm-dashboard/src/lib/http/schema.d.ts

@@ -29466,6 +29466,11 @@ export interface components {
              * @description AWS Bedrock runtime endpoint URL
              */
             aws_bedrock_runtime_endpoint?: string | null;
+            /**
+             * Aws External Id
+             * @description External ID required by the target role's trust policy on sts:AssumeRole
+             */
+            aws_external_id?: string | null;
             /**
              * Aws Profile Name
              * @description AWS profile name for credential retrieval