Add extract.py

extract.py

@@ -0,0 +1,22 @@
+from openai import OpenAI
+import json, re
+
+client = OpenAI()
+
+def extract_weight_report(text, lab):
+    prompt = f"""
+    Return ONLY valid JSON matching this structure:
+    ...
+    Document:
+    {text}
+    """
+
+    response = client.responses.create(
+        model="gpt-4.1-mini",
+        input=[{"role":"user","content":[{"type":"input_text","text":prompt}]}]
+    )
+
+    raw = response.output[0].content[0].text
+    raw = re.search(r"\{.*\}", raw, re.S).group()
+
+    return json.loads(raw)