style: fix array-bracket-spacing lint errors

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jerryliang64

core/agent-runtime/src/MessageConverter.ts

@@ -54,12 +54,12 @@ export class MessageConverter {
       if (prev && prev.type === ContentBlockType.Text && block.type === ContentBlockType.Text) {
         prev.text = {
           value: prev.text.value + block.text.value,
-          annotations: [...prev.text.annotations, ...block.text.annotations],
+          annotations: [ ...prev.text.annotations, ...block.text.annotations ],
         };
       } else {
         result.push({
           ...block,
-          text: { ...block.text, annotations: [...block.text.annotations] },
+          text: { ...block.text, annotations: [ ...block.text.annotations ] },
         });
       }
     }