fix: remove api_key from config.yaml, read from EMBED_API_KEY env var; unify config path constant

src/cli/main.py

@@ -13,7 +13,7 @@ if sys.stdout.encoding != "utf-8":
 # 确保 src 在路径中
 sys.path.insert(0, str(Path(__file__).parent.parent))
 
-from src.core.config import load_config
+from src.core.config import load_config, DEFAULT_CONFIG_PATH
 from src.core.db import VectorDB
 from src.core.embedder import create_embedder
 from src.core.ingest import DocumentIngestor
@@ -23,7 +23,7 @@ from src.core.search import Searcher
 app = typer.Typer(name="md-vector-db", help="Markdown 文档向量数据库管理工具")
 
 
-def _get_components(config_path: str = "config.yaml"):
+def _get_components(config_path: str = DEFAULT_CONFIG_PATH):
     """初始化所有组件."""
     cfg = load_config(config_path)
     db = VectorDB(persist_dir=cfg.chroma.persist_dir)

src/core/config.py

@@ -1,11 +1,15 @@
 """应用配置加载模块."""
 from __future__ import annotations
 
+import os
 from dataclasses import dataclass, field
 from pathlib import Path
 
 import yaml
 
+# 默认配置文件路径
+DEFAULT_CONFIG_PATH = "config.yaml"
+
 
 @dataclass
 class ChromaConfig:
@@ -22,7 +26,9 @@ class EmbedConfig:
     mode: str = "local"  # "local" | "api"
     local_model: str = "BAAI/bge-small-zh-v1.5"
     api_base: str = ""
-    api_key: str = ""
+    api_key: str = field(
+        default_factory=lambda: os.environ.get("EMBED_API_KEY", "")
+    )
 
 
 @dataclass
@@ -59,7 +65,7 @@ class AppConfig:
 
 def load_config(path: str | None = None) -> AppConfig:
     """从 YAML 文件加载配置, 若文件不存在则返回默认配置."""
-    config_path = path or "config.yaml"
+    config_path = path or DEFAULT_CONFIG_PATH
     if not Path(config_path).exists():
         return AppConfig()
 

src/server/app.py

@@ -5,7 +5,7 @@ from pathlib import Path
 from fastapi import FastAPI, HTTPException
 from pydantic import BaseModel
 
-from src.core.config import load_config, EmbedConfig
+from src.core.config import load_config, EmbedConfig, DEFAULT_CONFIG_PATH
 from src.core.db import VectorDB
 from src.core.embedder import create_embedder
 from src.core.ingest import DocumentIngestor
@@ -42,9 +42,9 @@ def _get_db():
 def _get_embedder():
     global _embedder
     if _embedder is None:
-        # 先尝试从 config.yaml 加载, 失败则用默认 local
+        # 先尝试从配置文件加载, 失败则用默认 local
         try:
-            cfg = load_config("config.yaml")
+            cfg = load_config(DEFAULT_CONFIG_PATH)
             embed_cfg = cfg.embed
         except Exception:
             embed_cfg = EmbedConfig(mode="local")
@@ -56,7 +56,7 @@ def _init_services():
     global _searcher, _ingestor
     collection = os.getenv("MD_VECTOR_DB_COLLECTION", "markdown_docs")
     try:
-        cfg = load_config("config.yaml")
+        cfg = load_config(DEFAULT_CONFIG_PATH)
         collection = cfg.chroma.collection_name
     except Exception:
         pass