feat: 新增 compute_gateway、compute_poller、agent 模块，重构前端 dist

- 新增 backend/app/modules/compute_gateway（client/sync）计算网关模块
- 新增 backend/app/workers/compute_poller 计算轮询 worker
- 新增 compute/agent/process_manager 进程管理器
- 新增 scripts/ 脚本目录
- 更新 Docker 部署配置（app/compute/nginx）
- 更新后端平台 API、数据库 SQL、core 配置
- 更新前端多个视图组件及 API 模块
- 重构 frontend/dist 构建产物（新 hash）
- 更新多项文档

Co-Authored-By: Claude <noreply@anthropic.com>

docker/compute/.env.example

@@ -8,14 +8,35 @@ FILE_GATEWAY_PORT=19101
 COMPUTE_API_IMAGE=yg-ft-compute-api:latest
 
 # The application server actively polls Compute API; compute server does not need reverse access.
+COMPUTE_AUTH_ENABLED=true
 COMPUTE_SERVICE_TOKEN=change_me
 ENABLE_APP_CALLBACK=false
 
 # LLaMA-Factory is provided by the official hiyouga/llamafactory base image.
 LLAMA_FACTORY_HOME=/app/LLaMA-Factory
 
+# Persistent host directories on the compute server.
+# Create these directories before starting docker compose. They are mounted into
+# the container so base models, datasets, training outputs and logs survive
+# container recreation or image upgrades.
 YG_FT_DATA_ROOT=/data/yg-ft
-YG_FT_DATA_ROOT_HOST=/data/yg-ft
+YG_FT_DATA_ROOT_HOST=./data/yg-ft
+YG_FT_MODEL_ROOT=/data/yg-ft/models
+YG_FT_MODEL_ROOT_HOST=./data/yg-ft/models
+YG_FT_DATASET_ROOT=/data/yg-ft/datasets
+YG_FT_DATASET_ROOT_HOST=./data/yg-ft/datasets
+YG_FT_OUTPUT_ROOT=/data/yg-ft/outputs
+YG_FT_OUTPUT_ROOT_HOST=./data/yg-ft/outputs
+TRAINING_LOG_ROOT=/opt/yg-ft/logs/training
+TRAINING_LOG_ROOT_HOST=./data/yg-ft/logs/training
+COMPUTE_LOG_ROOT_HOST=./data/yg-ft/logs/compute
+
+# Optional fallback used when nvidia-smi is unavailable.
+# Leave COMPUTE_GPU_COUNT=0 on real GPU servers with working NVIDIA runtime.
+COMPUTE_GPU_COUNT=0
+COMPUTE_GPU_NAME=NVIDIA A800-SXM4-80GB
+COMPUTE_GPU_MEMORY_GB=80
+COMPUTE_GPU_POWER_LIMIT_W=300
 
 LOG_DIR=/opt/yg-ft/logs/compute
 CUDA_VISIBLE_DEVICES=all