fix(gateway): harden chat abort semantics

ui/src/ui/app.ts

@@ -1033,13 +1033,19 @@ export class ClawdbotApp extends LitElement {
     const trimmed = text.trim();
     if (!trimmed) return false;
     const normalized = trimmed.toLowerCase();
-    return normalized === "/stop" || normalized === "stop" || normalized === "abort";
+    if (normalized === "/stop") return true;
+    return (
+      normalized === "stop" ||
+      normalized === "esc" ||
+      normalized === "abort" ||
+      normalized === "wait" ||
+      normalized === "exit"
+    );
   }
 
   async handleAbortChat() {
     if (!this.connected) return;
     this.chatMessage = "";
-    if (!this.chatRunId) return;
     await abortChatRun(this);
   }
 

ui/src/ui/controllers/chat.ts

@@ -95,12 +95,13 @@ export async function sendChatMessage(state: ChatState, message: string): Promis
 export async function abortChatRun(state: ChatState): Promise<boolean> {
   if (!state.client || !state.connected) return false;
   const runId = state.chatRunId;
-  if (!runId) return false;
   try {
-    await state.client.request("chat.abort", {
-      sessionKey: state.sessionKey,
-      runId,
-    });
+    await state.client.request(
+      "chat.abort",
+      runId
+        ? { sessionKey: state.sessionKey, runId }
+        : { sessionKey: state.sessionKey },
+    );
     return true;
   } catch (err) {
     state.lastError = String(err);