fixed codeProcessingUrl api method, minor sswagger improvemts

application/src/main/java/org/thingsboard/server/controller/AdminController.java

@@ -441,7 +441,7 @@ public class AdminController extends BaseController {
                 .build() + "\"";
     }
 
-    @GetMapping(value = "/mail/oauth2/code")
+    @GetMapping(value = "/mail/oauth2/code", params = {"code", "state"})
     public void codeProcessingUrl(
             @RequestParam(value = "code") String code, @RequestParam(value = "state") String state,
             HttpServletRequest request, HttpServletResponse response) throws ThingsboardException, IOException {

common/data/src/main/java/org/thingsboard/server/common/data/ai/dto/TbUserMessage.java

@@ -25,6 +25,12 @@ import java.util.List;
 public record TbUserMessage(
         @NotEmpty
         @Valid
-        @ArraySchema(schema = @Schema(ref = "#/components/schemas/TbContent"))
+        @ArraySchema(
+                arraySchema = @Schema(
+                        requiredMode = Schema.RequiredMode.REQUIRED,
+                        description = "A list of content parts that make up the complete user prompt"
+                ),
+                schema = @Schema(ref = "#/components/schemas/TbContent")
+        )
         List<TbContent> contents
 ) {}