feat(phase3): Task1 embedding链路验证 - embo-01(1536维)+pgvector检索打通

backend/scripts/test_embo01_api.py

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+"""
+探路脚本 — 调 MiniMax embo-01，打印原始返回 JSON
+确认向量字段位置和维度后再写正式 service。
+"""
+
+import httpx
+import json
+import os
+from pathlib import Path
+
+# 加载 .env
+from dotenv import load_dotenv
+_env_path = Path(__file__).parent.parent / ".env"
+load_dotenv(str(_env_path))
+
+api_key = os.environ.get("MINIMAX_EMBED_API_KEY", "")
+group_id = os.environ.get("MINIMAX_GROUP_ID", "")
+
+if not api_key or api_key == "your_api_key_here":
+    print("[ERROR] MINIMAX_EMBED_API_KEY not configured, please edit backend/.env")
+    exit(1)
+if not group_id or group_id == "your_group_id_here":
+    print("[ERROR] MINIMAX_GROUP_ID not configured, please edit backend/.env")
+    exit(1)
+
+print(f"API Key (first 4 chars): {api_key[:4]}...")
+print(f"GroupId: {group_id}")
+print()
+
+# 最小调用
+test_text = "这是一段测试文本，用于验证 embo-01 接口返回结构。"
+
+print(f"Sending request, test text: {test_text}")
+print("-" * 60)
+
+try:
+    resp = httpx.post(
+        "https://api.minimax.chat/v1/embeddings",
+        headers={
+            "Authorization": f"Bearer {api_key}",
+            "GroupId": group_id,
+            "Content-Type": "application/json",
+        },
+        json={"model": "embo-01", "texts": [test_text], "type": "db"},
+        timeout=30.0,
+    )
+    print(f"HTTP status: {resp.status_code}")
+    print()
+    data = resp.json()
+    print(json.dumps(data, indent=2, ensure_ascii=False))
+
+    # 提取向量，验证维度
+    print()
+    print("-" * 60)
+    vectors = data.get("vectors", [])
+    if vectors and len(vectors) > 0:
+        embedding = vectors[0]
+        dim = len(embedding)
+        print(f"[OK] Embedding field: vectors[0]")
+        print(f"[OK] Embedding dimension: {dim}")
+        if dim != 1536:
+            print(f"[STOP] Dimension is NOT 1536! Got {dim} - stopping here")
+        else:
+            print(f"[OK] Dimension correct: 1536")
+            print(f"[OK] API call successful, structure confirmed.")
+    else:
+        print("[WARNING] vectors not found in response")
+
+except Exception as e:
+    print(f"[ERROR] Request failed: {e}")