chore: 精简生发提示词，去掉磨皮/美颜要求

统一改为「填充遮罩区域的头发」，涉及后端默认值、ComfyUI 工作流 JSON、
测试页、benchmark 脚本、local_test。

Co-authored-by: Cursor <cursoragent@cursor.com>

local_test/app.py

@@ -206,7 +206,7 @@ def generate():
             return jsonify({"error": msg}), 400
         image_file = request.files["image"]
         mask_file = request.files["mask"]
-        prompt_text = request.form.get("prompt", "填充遮罩区域的头发，皮肤加一点磨皮，再加一点美颜")
+        prompt_text = request.form.get("prompt", "填充遮罩区域的头发")
         log.info(
             "收到请求: image=%s mask=%s prompt=%r",
             image_file.filename, mask_file.filename, prompt_text,

local_test/bench.py

@@ -27,7 +27,7 @@ def prep_and_upload():
 
 
 def run_once(fname, model, dtype, steps):
-    wf = A.build_workflow(fname, "填充遮罩区域的头发，皮肤加一点磨皮，再加一点美颜")
+    wf = A.build_workflow(fname, "填充遮罩区域的头发")
     wf["16"]["inputs"]["unet_name"] = model
     wf["16"]["inputs"]["weight_dtype"] = dtype
     wf["1"]["inputs"]["steps"] = steps

local_test/bench2.py

@@ -33,7 +33,7 @@ def upload(scale=1.0):
 
 
 def run(fname, steps):
-    wf = A.build_workflow(fname, "填充遮罩区域的头发，皮肤加一点磨皮，再加一点美颜")
+    wf = A.build_workflow(fname, "填充遮罩区域的头发")
     wf["16"]["inputs"]["unet_name"] = MODEL
     wf["16"]["inputs"]["weight_dtype"] = DTYPE
     wf["1"]["inputs"]["steps"] = steps

local_test/bench_quality.py

@@ -30,7 +30,7 @@ SEED = 123456789
 imgs = []
 labels = []
 for steps in [2, 3, 4, 6]:
-    wf = A.build_workflow(fname, "填充遮罩区域的头发，皮肤加一点磨皮，再加一点美颜", seed=SEED)
+    wf = A.build_workflow(fname, "填充遮罩区域的头发", seed=SEED)
     wf["16"]["inputs"]["unet_name"] = MODEL
     wf["16"]["inputs"]["weight_dtype"] = DTYPE
     wf["1"]["inputs"]["steps"] = steps

local_test/index.html

@@ -55,7 +55,7 @@ button { padding: 10px 24px; border: none; border-radius: 6px; cursor: pointer;
         </div>
         <div class="controls" style="margin-top:16px">
             <label>提示词:</label>
-            <input type="text" id="promptInput" value="填充遮罩区域的头发，皮肤加一点磨皮，再加一点美颜">
+            <input type="text" id="promptInput" value="填充遮罩区域的头发">
         </div>
         <div style="text-align:center; margin-top:16px">
             <button class="btn-generate" id="generateBtn" disabled>🚀 生成</button>

local_test/test_api.py

@@ -25,7 +25,7 @@ resp = requests.post(
         "image": ("original.jpg", img_data, "image/jpeg"),
         "mask": ("mask.png", mask_data, "image/png"),
     },
-    data={"prompt": "填充遮罩区域的头发，皮肤加一点磨皮，再加一点美颜"},
+    data={"prompt": "填充遮罩区域的头发"},
     timeout=600,
 )