feat: add vision prompt script

1.py

@@ -0,0 +1,52 @@
+import base64
+import mimetypes
+import os
+from pathlib import Path
+
+import httpx
+from openai import OpenAI
+
+
+BASE_DIR = Path(__file__).resolve().parent
+IMAGE_PATH = BASE_DIR / "03_43431636157.jpg"
+
+
+def image_to_data_url(path):
+    if not path.exists():
+        raise FileNotFoundError("Image not found: {}".format(path))
+
+    mime_type = mimetypes.guess_type(str(path))[0] or "image/jpeg"
+    image_base64 = base64.b64encode(path.read_bytes()).decode("ascii")
+    return "data:{};base64,{}".format(mime_type, image_base64)
+
+
+client = OpenAI(
+    base_url=os.environ.get("OPENAI_BASE_URL", "http://127.0.0.1:8080/v1"),
+    api_key=os.environ.get("OPENAI_API_KEY", "pwd"),
+    http_client=httpx.Client(trust_env=False),
+)
+
+response = client.chat.completions.create(
+    model=os.environ.get("OPENAI_MODEL", "gpt-5.5"),
+    messages=[
+        {
+            "role": "user",
+            "content": [
+                {
+                    "type": "text",
+                    "text": (
+                        "请观察这张图片中人物身上 T 恤胸前的印花。"
+                        "只回答印花是什么，包括图案形状、主要颜色、可能的文字或符号；"
+                        "如果文字看不清，请明确说明不要编造。"
+                    ),
+                },
+                {
+                    "type": "image_url",
+                    "image_url": {"url": image_to_data_url(IMAGE_PATH)},
+                },
+            ],
+        }
+    ],
+)
+
+print(response.choices[0].message.content)