feat: 增强 AI-Core 文档解析器

- 添加 VLM 客户端支持
- 优化解析器配置
- 添加配置示例文件
- 生成新的 gRPC protobuf 文件

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ai-core/parser/config.py

@@ -0,0 +1,84 @@
+"""
+配置管理模块
+"""
+import os
+import yaml
+import logging
+from typing import Optional, Dict, Any
+
+logger = logging.getLogger(__name__)
+
+# 默认配置
+DEFAULT_CONFIG = {
+    "vlm": {
+        "enabled": False,
+        "provider": "openai",
+        "model": "gpt-4o",
+        "api_key": "",
+        "base_url": "",
+        "prompt": ""
+    },
+    "server": {
+        "port": 50051,
+        "max_workers": 10,
+        "log_level": "INFO"
+    }
+}
+
+
+def load_config(config_path: Optional[str] = None) -> Dict[str, Any]:
+    """加载配置文件"""
+    if config_path is None:
+        # 默认查找 config.yaml
+        base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+        config_path = os.path.join(base_dir, "config.yaml")
+
+    # 环境变量覆盖
+    vlm_api_key = os.environ.get("VLM_API_KEY", "")
+    if vlm_api_key:
+        DEFAULT_CONFIG["vlm"]["api_key"] = vlm_api_key
+        DEFAULT_CONFIG["vlm"]["enabled"] = True
+        logger.info("VLM enabled via environment variable")
+
+    vlm_provider = os.environ.get("VLM_PROVIDER", "")
+    if vlm_provider:
+        DEFAULT_CONFIG["vlm"]["provider"] = vlm_provider
+
+    vlm_model = os.environ.get("VLM_MODEL", "")
+    if vlm_model:
+        DEFAULT_CONFIG["vlm"]["model"] = vlm_model
+
+    # 尝试加载配置文件
+    if os.path.exists(config_path):
+        try:
+            with open(config_path, 'r', encoding='utf-8') as f:
+                file_config = yaml.safe_load(f)
+                if file_config:
+                    # 合并配置
+                    for key in file_config:
+                        if key in DEFAULT_CONFIG:
+                            DEFAULT_CONFIG[key].update(file_config[key])
+                    logger.info(f"Loaded config from {config_path}")
+        except Exception as e:
+            logger.warning(f"Failed to load config: {e}")
+
+    # 检查 VLM 是否有效
+    if DEFAULT_CONFIG["vlm"]["enabled"] and not DEFAULT_CONFIG["vlm"]["api_key"]:
+        logger.warning("VLM enabled but API key is empty, disabling VLM")
+        DEFAULT_CONFIG["vlm"]["enabled"] = False
+
+    return DEFAULT_CONFIG
+
+
+def get_vlm_config() -> Optional[Dict[str, Any]]:
+    """获取 VLM 配置"""
+    config = load_config()
+    if config.get("vlm", {}).get("enabled") and config["vlm"].get("api_key"):
+        return config["vlm"]
+    return None
+
+
+def get_server_config() -> Dict[str, Any]:
+    """获取服务器配置"""
+    config = load_config()
+    return config.get("server", DEFAULT_CONFIG["server"])