[bin] Add hroot notif errors to ntfy as well

bin/.bin/hungryroot-notifications

@@ -37,6 +37,7 @@ IMAP_PASS = os.environ.get("IMAP_PASS", "")
 
 NTFY_BASE = os.environ.get("NTFY_BASE", "https://ntfy.unbl.ink")
 NTFY_TOPIC = os.environ.get("NTFY_TOPIC", "hroot-notifications")
+NTFY_ERROR_TOPIC = os.environ.get("NTFY_ERROR_TOPIC", "errors")
 POLL_SECONDS = int(os.environ.get("POLL_SECONDS", "20"))
 
 # Optional: if your ntfy needs auth
@@ -171,6 +172,28 @@ def notify_ntfy(title: str, message: str, url: str | None = None):
     )
     r.raise_for_status()
 
+def notify_error(err: str):
+    endpoint = f"{NTFY_BASE.rstrip('/')}/{NTFY_ERROR_TOPIC}"
+    headers = {
+        "Title": "hungryroot-notifications error",
+        "Tags": "warning",
+        "Priority": "5",
+    }
+
+    auth = None
+    if NTFY_TOKEN:
+        headers["Authorization"] = f"Bearer {NTFY_TOKEN}"
+    elif NTFY_USER and NTFY_PASS:
+        auth = (NTFY_USER, NTFY_PASS)
+
+    # Keep it short so it doesn't spam
+    body = err.strip()
+    if len(body) > 1500:
+        body = body[:1500] + "…"
+
+    r = requests.post(endpoint, data=body.encode("utf-8"), headers=headers, auth=auth, timeout=10)
+    r.raise_for_status()
+
 
 def fetch_unseen():
     context = ssl.create_default_context()
@@ -217,7 +240,12 @@ def main():
                 msg = f"{snippet}\n\nFrom: {from_}"
                 notify_ntfy(title=title, message=msg, url=github_url)
         except Exception as e:
-            print(f"[hungryroot-notifications] error: {e}")
+            msg = f"[hungryroot-notifications] {type(e).__name__}: {e}"
+            print(msg)
+            try:
+                notify_error(msg)
+            except Exception as e2:
+                print(f"[hungryroot-notifications] failed to notify error: {e2}")
         time.sleep(POLL_SECONDS)