fix: ingest_obsidian 初始化添加异常处理和友好错误信息

scripts/ingest_obsidian.py

@@ -29,10 +29,16 @@ def log(msg):
 
 t0 = time.time()
 log("初始化...")
+try:
     cfg = load_config()
     db = VectorDB(persist_dir=cfg.chroma.persist_dir)
     embedder = create_embedder(cfg.embed)
     ingestor = DocumentIngestor(db, embedder, "obsidian_blog")
+except Exception as e:
+    log(f"初始化失败: {e}")
+    import traceback
+    log(traceback.format_exc())
+    sys.exit(1)
 
 # 从 CLI 参数或环境变量获取目录列表
 if len(sys.argv) > 1: