Add production-ready scraper with README

app/main.py

@@ -0,0 +1,52 @@
+import httpx
+from fastapi import FastAPI, HTTPException
+
+app = FastAPI(title="GISP Scraper API (API-Direct)")
+
+# The API endpoint identified from network inspection
+API_URL = "https://gisp.gov.ru/pp719v2/pub/prod/b/"
+
+async def fetch_gisp_data(registry_number: str):
+    # Constructing the filter payload based on what we saw in the Network tab
+    # We will remove the restrictive date filters (res_valid_till, etc.)
+    payload = {
+        "opt": {
+            "sort": None,
+            "requireTotalCount": True,
+            "searchOperation": "contains",
+            "searchValue": None,
+            "skip": 0,
+            "take": 10,
+            "userData": {},
+            "filter": ["product_reg_number_2023", "contains", registry_number]
+        }
+    }
+    
+    async with httpx.AsyncClient() as client:
+        try:
+            response = await client.post(API_URL, json=payload, timeout=30.0)
+            response.raise_for_status()
+            data = response.json()
+            
+            # GISP usually returns { "data": [ ... ], "totalCount": N }
+            if "data" in data and len(data["data"]) > 0:
+                # Return the URL or specific entry found
+                # Based on the DevExtreme schema, we might need a specific ID to form the URL
+                return data["data"]
+            return None
+        except Exception as e:
+            print(f"API scraping error: {e}")
+            return None
+
+@app.get("/scrape/{registry_number:path}")
+async def get_product_link(registry_number: str):
+    results = await fetch_gisp_data(registry_number)
+    if not results:
+        raise HTTPException(status_code=404, detail="Product not found or scraping failed")
+    
+    # We can refine this to return the specific URL or the whole result object
+    return {"registry_number": registry_number, "results": results}
+
+@app.get("/health")
+def health():
+    return {"status": "ok"}