fix: Agent survives slow Hub on large syncs (25-product chunks, 120s timeout, retry) and keeps heartbeating during jobs; 1.1.4

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

agent/src/gti_fiscal_agent/client.py

@@ -1,13 +1,20 @@
 import httpx
 
 class HubClient:
-    def __init__(self, url, token, chunk_size=100): self.url, self.token, self.chunk_size = url.rstrip("/"), token, chunk_size
+    def __init__(self, url, token, chunk_size=25): self.url, self.token, self.chunk_size = url.rstrip("/"), token, chunk_size
     def _headers(self): return {"Authorization": f"Bearer {self.token}"}
     def classify_batch(self, products):
         results = []
         for start in range(0, len(products), self.chunk_size):
             chunk = products[start:start + self.chunk_size]
-            response = httpx.post(f"{self.url}/v1/classify/batch", json={"products": chunk}, headers=self._headers(), timeout=60)
+            # Small chunks + generous timeout + one retry: a large first sync must survive a
+            # slow Hub / reverse-proxy read timeout instead of failing the whole job.
+            for attempt in (1, 2):
+                try:
+                    response = httpx.post(f"{self.url}/v1/classify/batch", json={"products": chunk}, headers=self._headers(), timeout=120)
+                    break
+                except httpx.ReadTimeout:
+                    if attempt == 2: raise
             response.raise_for_status(); results.extend(response.json()["results"])
         return results
     def get_json(self, path):