fix(dev): 兼容 Compose 数据库容器启动

保留显式数据库连接配置，自动识别 Compose PostgreSQL 容器及宿主机端口，并在容器不存在时跳过不适用的 Docker 建库。\n\n验证：bash -n；ShellCheck；scripts/create-database.sh；pnpm dev 真实启动 API 与 Web

scripts/dev.sh

@@ -24,6 +24,47 @@ load_local_env() {
 
 load_local_env
 
+find_postgres_container() {
+  local candidate compose_container
+
+  if [[ -n "${AI_GATEWAY_PG_CONTAINER:-}" ]]; then
+    if docker inspect "$AI_GATEWAY_PG_CONTAINER" >/dev/null 2>&1; then
+      printf '%s\n' "$AI_GATEWAY_PG_CONTAINER"
+      return 0
+    fi
+    return 1
+  fi
+
+  for candidate in easyai-pgvector postgres; do
+    if docker inspect "$candidate" >/dev/null 2>&1; then
+      printf '%s\n' "$candidate"
+      return 0
+    fi
+  done
+
+  compose_container="$(
+    docker compose -f "${PROJECT_ROOT}/docker-compose.yml" ps -q postgres 2>/dev/null \
+      | head -n 1
+  )"
+  if [[ -n "$compose_container" ]] && docker inspect "$compose_container" >/dev/null 2>&1; then
+    printf '%s\n' "$compose_container"
+    return 0
+  fi
+
+  return 1
+}
+
+postgres_host_port() {
+  local mapping port
+  mapping="$(docker port "$1" 5432/tcp 2>/dev/null | head -n 1)"
+  port="${mapping##*:}"
+  if [[ "$port" =~ ^[0-9]+$ ]]; then
+    printf '%s\n' "$port"
+  else
+    printf '5432\n'
+  fi
+}
+
 stop_stale_api_processes() {
   local api_port="${HTTP_ADDR:-:8088}"
   api_port="${api_port##*:}"
@@ -66,37 +107,44 @@ stop_stale_api_processes() {
   sleep 0.5
 }
 
-if [[ -z "${AI_GATEWAY_PG_CONTAINER:-}" ]]; then
-  if docker inspect easyai-pgvector >/dev/null 2>&1; then
-    export AI_GATEWAY_PG_CONTAINER="easyai-pgvector"
-  elif docker inspect postgres >/dev/null 2>&1; then
-    export AI_GATEWAY_PG_CONTAINER="postgres"
-  else
-    export AI_GATEWAY_PG_CONTAINER="easyai-pgvector"
-  fi
+database_url_was_configured=0
+pg_container_was_configured=0
+[[ -n "${AI_GATEWAY_DATABASE_URL:-}" ]] && database_url_was_configured=1
+[[ -n "${AI_GATEWAY_PG_CONTAINER:-}" ]] && pg_container_was_configured=1
+
+postgres_container="$(find_postgres_container || true)"
+if [[ -n "$postgres_container" ]]; then
+  export AI_GATEWAY_PG_CONTAINER="$postgres_container"
+elif [[ "$pg_container_was_configured" == "1" ]]; then
+  echo "[ai-gateway] configured PostgreSQL container is unavailable; using the database URL without Docker database creation" >&2
 fi
+
 export AI_GATEWAY_PG_USER="${AI_GATEWAY_PG_USER:-easyai}"
-if [[ -z "${AI_GATEWAY_PG_PASSWORD:-}" ]] && docker inspect "$AI_GATEWAY_PG_CONTAINER" >/dev/null 2>&1; then
+if [[ -z "${AI_GATEWAY_PG_PASSWORD:-}" && -n "$postgres_container" ]]; then
   AI_GATEWAY_PG_PASSWORD="$(
-    docker inspect "$AI_GATEWAY_PG_CONTAINER" --format '{{range .Config.Env}}{{println .}}{{end}}' \
+    docker inspect "$postgres_container" --format '{{range .Config.Env}}{{println .}}{{end}}' \
       | awk -F= '$1 == "POSTGRES_PASSWORD" {print $2; exit}'
   )"
   export AI_GATEWAY_PG_PASSWORD
 fi
 export AI_GATEWAY_PG_PASSWORD="${AI_GATEWAY_PG_PASSWORD:-easyai2025}"
 export AI_GATEWAY_DATABASE_NAME="${AI_GATEWAY_DATABASE_NAME:-easyai_ai_gateway}"
-if docker inspect "$AI_GATEWAY_PG_CONTAINER" >/dev/null 2>&1; then
-  export AI_GATEWAY_DATABASE_URL="postgresql://${AI_GATEWAY_PG_USER}:${AI_GATEWAY_PG_PASSWORD}@localhost:5432/${AI_GATEWAY_DATABASE_NAME}?sslmode=disable"
-else
-  export AI_GATEWAY_DATABASE_URL="${AI_GATEWAY_DATABASE_URL:-postgresql://${AI_GATEWAY_PG_USER}:${AI_GATEWAY_PG_PASSWORD}@localhost:5432/${AI_GATEWAY_DATABASE_NAME}?sslmode=disable}"
+if [[ "$database_url_was_configured" == "0" ]]; then
+  postgres_port=5432
+  if [[ -n "$postgres_container" ]]; then
+    postgres_port="$(postgres_host_port "$postgres_container")"
+  fi
+  export AI_GATEWAY_DATABASE_URL="postgresql://${AI_GATEWAY_PG_USER}:${AI_GATEWAY_PG_PASSWORD}@localhost:${postgres_port}/${AI_GATEWAY_DATABASE_NAME}?sslmode=disable"
 fi
 
 echo "[ai-gateway] using configured local database connection (credentials redacted)"
 
 if [[ "${AI_GATEWAY_SKIP_DB_CREATE:-}" == "1" ]]; then
   echo "[ai-gateway] skipping Docker database creation"
-else
+elif [[ -n "$postgres_container" && ( "$database_url_was_configured" == "0" || "$pg_container_was_configured" == "1" ) ]]; then
   scripts/create-database.sh
+else
+  echo "[ai-gateway] no matching Docker database container selected; skipping database creation"
 fi
 pnpm nx run api:migrate
 stop_stale_api_processes