fix: 限制手动比例输入

core/frontend/src/routes/ai-tools.tsx

@@ -656,6 +656,22 @@ export function ImageWorkbenchPage({
   const [ratioManual, setRatioManual] = useState(false);
   const [ratioW, setRatioW] = useState("");
   const [ratioH, setRatioH] = useState("");
+  const updateRatioDimension = (event: ChangeEvent<HTMLInputElement>, dimension: "width" | "height") => {
+    const value = event.target.value;
+    const next = value === "" || /^[1-9]\d*$/.test(value) ? value : "";
+    event.target.value = next;
+
+    if (dimension === "width") {
+      setRatioW(next);
+      if (next && ratioH) setRatio(`${next}:${ratioH}`);
+    } else {
+      setRatioH(next);
+      if (ratioW && next) setRatio(`${ratioW}:${next}`);
+    }
+  };
+  const blockNonIntegerKey = (event: React.KeyboardEvent<HTMLInputElement>) => {
+    if ([".", "+", "-", "e", "E"].includes(event.key)) event.preventDefault();
+  };
   // 生图模型选择:默认火山(内衣等敏感品类不被审核拦,还原也更好),可切 gpt-image-2。持久化到 localStorage。
   const [genModel, setGenModel] = useState<string>(() => {
     try { return localStorage.getItem(GEN_MODEL_KEY) || "volcano"; } catch { return "volcano"; }
@@ -1954,26 +1970,22 @@ export function ImageWorkbenchPage({
                           className="input"
                           type="number"
                           min={1}
+                          step={1}
                           placeholder="宽"
                           value={ratioW}
-                          onChange={(event) => {
-                            const w = event.target.value;
-                            setRatioW(w);
-                            if (w && ratioH) setRatio(`${w}:${ratioH}`);
-                          }}
+                          onKeyDown={blockNonIntegerKey}
+                          onChange={(event) => updateRatioDimension(event, "width")}
                         />
                         <span className="sep">:</span>
                         <input
                           className="input"
                           type="number"
                           min={1}
+                          step={1}
                           placeholder="高"
                           value={ratioH}
-                          onChange={(event) => {
-                            const h = event.target.value;
-                            setRatioH(h);
-                            if (ratioW && h) setRatio(`${ratioW}:${h}`);
-                          }}
+                          onKeyDown={blockNonIntegerKey}
+                          onChange={(event) => updateRatioDimension(event, "height")}
                         />
                       </div>
                     )}