fix(extension): use LEGACY_ELEMENT_SELECTED enum value

- Extension was referencing PointerMessageType.ELEMENT_SELECTED which doesn't exist
- Changed to PointerMessageType.LEGACY_ELEMENT_SELECTED in element-sender-service.ts
- Fixed websocket-server.ts to remove invalid ELEMENT_CLEARED reference (dead code)
- Fixed lint error in mcp-service.ts (line length)
- Fixes bug introduced in PR etsd-tech#14

Author: ashtonchew

packages/chrome-extension/src/services/element-sender-service.ts

@@ -45,7 +45,7 @@ export class ElementSenderService {
       statusCallback?.(ConnectionStatus.SENDING);
 
       const message: PointerMessage = {
-        type: PointerMessageType.ELEMENT_SELECTED,
+        type: PointerMessageType.LEGACY_ELEMENT_SELECTED,
         data: element,
         timestamp: Date.now(),
       };

packages/server/src/services/mcp-service.ts

@@ -102,7 +102,11 @@ export default class MCPService {
       };
     }
 
-    const shapedElement = shapeElementForDetail(processedElement, details.textDetail, details.cssLevel);
+    const shapedElement = shapeElementForDetail(
+      processedElement,
+      details.textDetail,
+      details.cssLevel,
+    );
 
     return {
       content: [

packages/server/src/websocket-server.ts

@@ -46,10 +46,8 @@ export default class PointerWebSocketServer {
   }
 
   private handleMessage(message: PointerMessage): void {
-    if (message.type === PointerMessageType.ELEMENT_SELECTED && message.data) {
+    if (message.type === PointerMessageType.LEGACY_ELEMENT_SELECTED && message.data) {
       this.currentElement = message.data as TargetedElement;
-    } else if (message.type === PointerMessageType.ELEMENT_CLEARED) {
-      this.currentElement = null;
     }
   }