完善部署并训练5个新发型 + 换发型集成文档

部署修复：
- torch.load 增加 weights_only=False patch，兼容 PyTorch 2.6+ 加载旧权重
- OSS 改为懒加载，本地用 output_format=base64 无需配凭证即可启动
- 补全被 gitignore 误排除的必需代码：core/models/layers/data、models/layers/data、keypoints/lib
- webui 训练命令 --xformers 改 --sdpa（修复 xformers 无 CUDA 支持报错）

功能调整：
- hair_grow_service 端口改 8899、preview 路由修复（send_file）
- list_hairstyles 增加发型白名单，测试页只展示当前5个发型

新增脚本：
- train_lora_parallel.py：直接调 kohya 并行训练 LoRA（绕过 photo_service 串行限制）
- train_hairstyles_parallel.py / train_batch_stepC.py：批量训练辅助脚本
- scripts/sync_data_to_server.sh：大文件断点续传到云服务器

文档：
- docs/换发型集成文档.md：换发型完整流程、服务架构、资源依赖、训练方法、集成步骤

scripts/sync_data_to_server.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+# 断点续传大文件到云服务器 /home/ubuntu/data
+# 用法: bash scripts/sync_data_to_server.sh [all|weights|sd|hairstyles]
+set -euo pipefail
+
+REMOTE="ubuntu@117.50.213.111"
+REMOTE_BASE="/home/ubuntu/data"
+LOCAL_BASE="/home/xsl/change_hair"
+LOG_DIR="${LOCAL_BASE}/project/logs"
+mkdir -p "$LOG_DIR"
+
+RSYNC_OPTS=(-avP --partial --info=progress2)
+
+sync_weights() {
+  echo ">>> [1/3] 同步 hair_service_sd/weights (~10G) ..."
+  rsync "${RSYNC_OPTS[@]}" \
+    "${LOCAL_BASE}/project/hair_service_sd/weights/" \
+    "${REMOTE}:${REMOTE_BASE}/hair_service_sd/weights/"
+}
+
+sync_sd_models() {
+  echo ">>> [2/3] 同步 SD 底模 + ESRGAN + GFPGAN (~4.6G) ..."
+  rsync "${RSYNC_OPTS[@]}" \
+    "${LOCAL_BASE}/project/onediff/stable-diffusion-webui/models/Stable-diffusion/v1-5-pruned-emaonly.safetensors" \
+    "${REMOTE}:${REMOTE_BASE}/sdwebui/models/Stable-diffusion/"
+  rsync "${RSYNC_OPTS[@]}" \
+    "${LOCAL_BASE}/project/onediff/stable-diffusion-webui/models/ESRGAN/" \
+    "${REMOTE}:${REMOTE_BASE}/sdwebui/models/ESRGAN/"
+  rsync "${RSYNC_OPTS[@]}" \
+    "${LOCAL_BASE}/project/onediff/stable-diffusion-webui/models/GFPGAN/" \
+    "${REMOTE}:${REMOTE_BASE}/sdwebui/models/GFPGAN/"
+}
+
+sync_hairstyles() {
+  echo ">>> [3/3] 同步 5 个 chang_* 发型资源 (~0.8G) ..."
+  for id in chang_tuoyuan chang_bolang chang_zhixian chang_huaban chang_xinxing; do
+    echo "  - $id"
+    rsync "${RSYNC_OPTS[@]}" \
+      "${LOCAL_BASE}/project/data/ref_hairstyle/${id}/" \
+      "${REMOTE}:${REMOTE_BASE}/project/data/ref_hairstyle/${id}/"
+    rsync "${RSYNC_OPTS[@]}" \
+      "${LOCAL_BASE}/project/data/hair_template_material/${id}/" \
+      "${REMOTE}:${REMOTE_BASE}/project/data/hair_template_material/${id}/"
+    rsync "${RSYNC_OPTS[@]}" \
+      "${LOCAL_BASE}/project/data/upload_train_imgs/${id}/" \
+      "${REMOTE}:${REMOTE_BASE}/project/data/upload_train_imgs/${id}/"
+    rsync "${RSYNC_OPTS[@]}" \
+      "${LOCAL_BASE}/data/train_material/${id}/" \
+      "${REMOTE}:${REMOTE_BASE}/train_material/${id}/"
+  done
+}
+
+TARGET="${1:-all}"
+case "$TARGET" in
+  weights)   sync_weights ;;
+  sd)        sync_sd_models ;;
+  hairstyles) sync_hairstyles ;;
+  all)
+    sync_weights
+    sync_sd_models
+    sync_hairstyles
+    ;;
+  *)
+    echo "用法: $0 [all|weights|sd|hairstyles]"
+    exit 1
+    ;;
+esac
+
+echo ">>> 同步完成: ${TARGET}"