[http-specs] Fix bulletPointsModel API signature to match runtime behavior

.chronus/changes/fix-bulletpointsmodel-api-2025-12-12-07-23-18.md

@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@typespec/http-specs"
+---
+
+Fix bulletPointsModel API signature to match runtime behavior - changed response type to OkResponse and updated request body structure

packages/http-specs/specs/documentation/main.tsp

@@ -87,13 +87,13 @@ namespace Lists {
     Expected input:
     ```json
     {
-      "prop": "Simple"
+      "input": {"prop": "Simple"}
     }
     ```
     """)
   @post
   @route("/bullet-points/model")
-  op bulletPointsModel(input: BulletPointsModel): NoContentResponse;
+  op bulletPointsModel(input: BulletPointsModel): OkResponse;
 
   /**
    * Steps to follow:

packages/http-specs/specs/documentation/mockapi.ts

@@ -37,7 +37,9 @@ Scenarios.Documentation_Lists_bulletPointsOp = createGetServerTests(
 Scenarios.Documentation_Lists_bulletPointsModel = createPostServerTests(
   "/documentation/lists/bullet-points/model",
   {
-    prop: "Simple",
+    input: {
+      prop: "Simple",
+    },
   },
 );