feat: 初始化零工后端代码

gig-poc/infrastructure/scripts/export-openapi.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env sh
+set -eu
+
+SCRIPT_DIR=$(CDPATH= cd -- "$(dirname "$0")" && pwd)
+PROJECT_DIR=$(CDPATH= cd -- "$SCRIPT_DIR/../.." && pwd)
+API_PORT="${API_PORT:-8000}"
+OUTPUT_PATH="${1:-$PROJECT_DIR/docs/openapi.json}"
+
+mkdir -p "$(dirname "$OUTPUT_PATH")"
+curl -fsS "http://127.0.0.1:${API_PORT}/openapi.json" -o "$OUTPUT_PATH"
+echo "OpenAPI 已导出到: $OUTPUT_PATH"