fix: local echo optimize

Author: dalaolala

frontend/src/components/XtermTerminal.vue

@@ -145,7 +145,26 @@ const initTerminal = () => {
   term.loadAddon(webLinksAddon)
   
   zerolag = new ZerolagInputAddon({
-    prompt: { type: 'regex', pattern: /[$#%❯>]\s*$/, offset: 2 }
+    prompt: {
+      type: 'custom',
+      find: (t) => {
+        const buffer = t.buffer.active;
+        const cursorY = buffer.cursorY;
+        for (let y = cursorY; y >= Math.max(0, cursorY - 5); y--) {
+          const line = buffer.getLine(y);
+          if (line) {
+            const str = line.translateToString(true);
+            const match = str.match(/[$#%❯>]\s*$/);
+            if (match) {
+              return { row: y, col: match.index + match[0].length };
+            }
+          }
+        }
+        // Fallback to cursor position if prompt not recognized
+        return { row: buffer.cursorY, col: buffer.cursorX };
+      }
+    },
+    zIndex: 9999
   })
   term.loadAddon(zerolag)