Develop labeling module (#25)

* refactor: remove db table management from LS adapter (mv to scripts later); change adapter to use the same MySQL DB as other modules.

* refactor: Rename LS Adapter module to datamate-python

runtime/datamate-python/deploy/docker-entrypoint.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+set -e
+
+echo "=========================================="
+echo "Label Studio Adapter Starting..."
+echo "=========================================="
+
+# Label Studio 本地存储基础路径（从环境变量获取，默认值）
+LABEL_STUDIO_LOCAL_BASE="${LABEL_STUDIO_LOCAL_BASE:-/label-studio/local_files}"
+
+echo "=========================================="
+echo "Ensuring Label Studio local storage directories exist..."
+echo "Base path: ${LABEL_STUDIO_LOCAL_BASE}"
+echo "=========================================="
+
+# 创建必要的目录
+mkdir -p "${LABEL_STUDIO_LOCAL_BASE}/dataset"
+mkdir -p "${LABEL_STUDIO_LOCAL_BASE}/upload"
+
+echo "✓ Directory 'dataset' ready: ${LABEL_STUDIO_LOCAL_BASE}/dataset"
+echo "✓ Directory 'upload' ready: ${LABEL_STUDIO_LOCAL_BASE}/upload"
+
+echo "=========================================="
+echo "Directory initialization completed"
+echo "=========================================="
+
+# 等待数据库就绪（如果配置了数据库）
+if [ -n "$MYSQL_HOST" ] || [ -n "$POSTGRES_HOST" ]; then
+    echo "Waiting for database to be ready..."
+    sleep 5
+fi
+
+# 运行数据库迁移
+echo "=========================================="
+echo "Running database migrations..."
+echo "=========================================="
+alembic upgrade head
+
+if [ $? -eq 0 ]; then
+    echo "✓ Database migrations completed successfully"
+else
+    echo "⚠️  WARNING: Database migrations failed"
+    echo "    The application may not work correctly"
+fi
+
+echo "=========================================="
+
+# 启动应用
+echo "Starting Label Studio Adapter..."
+echo "Host: ${HOST:-0.0.0.0}"
+echo "Port: ${PORT:-18000}"
+echo "Debug: ${DEBUG:-false}"
+echo "Label Studio URL: ${LABEL_STUDIO_BASE_URL}"
+echo "=========================================="
+
+# 转换 LOG_LEVEL 为小写（uvicorn 要求小写）
+LOG_LEVEL_LOWER=$(echo "${LOG_LEVEL:-info}" | tr '[:upper:]' '[:lower:]')
+
+# 使用 uvicorn 启动应用
+exec uvicorn app.main:app \
+    --host "${HOST:-0.0.0.0}" \
+    --port "${PORT:-18000}" \
+    --log-level "${LOG_LEVEL_LOWER}" \
+    ${DEBUG:+--reload}