refactor: extract dashboard and message-runtime from index.ts

- Extract dashboard code into src/dashboard.ts
- Extract message runtime into src/message-runtime.ts
- Improve group-queue with better concurrency handling
- Update agent-runner with enhanced env/config passing
- Simplify DB operations and cleanup unused code
- Update README for Codex SDK architecture

src/ipc.ts

@@ -20,7 +20,6 @@ export interface IpcDeps {
     groupFolder: string,
     isMain: boolean,
     availableGroups: AvailableGroup[],
-    registeredJids: Set<string>,
   ) => void;
 }
 
@@ -405,7 +404,6 @@ export async function processTaskIpc(
           sourceGroup,
           true,
           availableGroups,
-          new Set(Object.keys(registeredGroups)),
         );
       } else {
         logger.warn(