Include completed tasks in top system section when accuracy boost is enabled

- when using 'accuracy boost', 'completed tasks' are not repeated above '# Files' [Accuracy boost]

└── apps
    └── editor
        └── src
            ├── utils
            │   └── prompt-builder.ts
            └── views
                └── prompt
                    └── backend
                        ├── message-handlers
                        │   ├── handle-autofill.ts
                        │   ├── handle-copy-prompt.ts
                        │   ├── handle-invoke-agentic-cli.ts
                        │   ├── handle-make-api-call.ts
                        │   ├── handle-preview-prompt.ts
                        │   ├── handle-preview-web-configuration.ts
                        │   └── utils
                        │       ├── build-cli-prompt.ts
                        │       └── build-prompt-payload.ts
                        ├── prompt-view-provider.ts
                        └── utils
                            └── symbols
                                └── replace-symbols.ts

Author: robertpiosik

apps/editor/src/utils/prompt-builder.ts

@@ -93,6 +93,12 @@ export namespace PromptBuilder {
         const req_str = params.requirements.map((r) => `- ${r}`).join('\n')
         top_sys += `# Requirements\n\n${req_str}\n\n`
       }
+      if (params.completed_tasks && params.completed_tasks.length > 0) {
+        const tasks_str = params.completed_tasks
+          .map((t) => `- [x] ${t}`)
+          .join('\n')
+        top_sys += `# Completed tasks\n\n${tasks_str}\n\n`
+      }
     }
 
     if (params.files_context !== undefined) {