fix(changelog): split entries mixing code fences with angle-bracket types

generators/java/sdk/versions.yml

@@ -43,7 +43,8 @@
         **Configurable reconnection** — `reconnectOptions(ReconnectOptions)`
         lets callers tune max retries, backoff delay, and queue size before
         calling `connect()`.
-
+      type: feat
+    - summary: |
         **Generic `onMessage(Consumer<String>)` handler** — fires for every
         incoming text frame with the raw JSON string, before type-specific
         dispatch. Useful for logging or custom routing.
@@ -1684,6 +1685,9 @@
         When enabled, optional nullable fields use `OptionalNullable<T>` to distinguish between omitted fields,
         explicit null values, and actual values. This enables proper PATCH request semantics for APIs that need
         to differentiate between "not specified" and "set to null".
+      type: feat
+    - summary: |
+        Example `collapse-optional-nullable` configuration and usage:
 
         ```yaml
         customConfig:
@@ -3204,7 +3208,7 @@
                     starting_after: optional<string>
                 response: ListUsersResponse
           ```
-
+        - |
           The generated `SyncPagingIterable<User>` can then be used to traverse through the `User` objects:
 
           ```java