初始化：换发型/换发色/训练发型服务

包含：
- hair_service_sd: 主服务（换发型/换发色/生发，端口8801）
- photo_service: LoRA调度+训练（端口32678）
- hair_grow_service: 调试测试页（端口8888，含4个测试页）
- 批量训练脚本（batch_train_hairstyles.py）
- 发际线mask自动识别（hairline_mask.py，4种方案）
- 手绘mask换发型（hair_swap_manual.py）
- 文档：README.md + LARGE_FILES.md + docs/

大文件（模型权重200G、训练数据123G）已排除，见 LARGE_FILES.md
OSS/COS密钥已脱敏为环境变量，原文件备份在本地

project/hair_service_sd/common/callback.py

@@ -0,0 +1,46 @@
+import requests
+import json
+
+callback_hairstyle_url = "https://puton.meidaojia.com/api/cloth/callBack"
+
+def callback_color(color_id, cover_img, success):
+    url = "http://172.21.0.3:8080/ydapp/system/platform/complete_color_model"
+    payload = json.dumps({
+      "success": success,
+      "colorId": color_id,
+      "coverImg": cover_img
+    })
+    headers = {
+      'X-MZ-API-TOKEN': '98bcf37c942a2240ba2d907c96ed1137',
+      'Content-Type': 'application/json'
+    }
+    response = requests.request("POST", url, headers=headers, data=payload)
+    return response
+    # print(response.text)
+
+
+def callback_hairstyle(req_id, state, message, clothId):
+    url = callback_hairstyle_url
+    payload = json.dumps({
+        "taskId": req_id,
+        "status": state,
+        "clothId": clothId,
+        "msg": message
+    })
+
+    status = -1
+
+    print(f"url:{url},complete_hair_model payload:{payload}")
+
+    headers = {
+      'X-MZ-API-TOKEN': '98bcf37c942a2240ba2d907c96ed1137',
+      'Content-Type': 'application/json'
+    }
+    try:
+        response = requests.request("POST", url, headers=headers, data=payload)
+        print("response:", response.text)
+        status = 0
+    except Exception as e:
+        print(e)
+
+    return response.text, status