Add getProcesses iframe handler

src/router.ts

@@ -268,7 +268,33 @@ export async function registerAllListeners() {
       errorResponse(errorMsg, event.origin);
     }
   }
-  
+
+  const handleGetProcesses = async (event: MessageEvent) => {
+    if (event.data.type !== MessageType.GET_PROCESSES) {
+      return;
+    }
+    const tokenService = await TokenService.getInstance();
+
+    try {
+      const accessToken = event.data.accessToken;
+      const refreshToken = event.data.refreshToken;
+
+      const processes = await services.getProcesses();
+      
+      window.parent.postMessage(
+        { 
+          type: MessageType.PROCESSES_RETRIEVED,
+          processes: JSON.stringify(processes),
+          accessToken: accessToken,
+          refreshToken: refreshToken
+        },
+        event.origin
+      );
+    } catch (e) {
+      const errorMsg = `Failed to get processes: ${e}`;
+      errorResponse(errorMsg, event.origin);
+    }
+  }  
 
   const handleAddFolder = async (event: MessageEvent) => {
     if (event.data.type !== MessageType.CREATE_FOLDER) {