fix: resolve falsy effective_limit bug preventing model block on negative quota

volc_limit_sync.py

@@ -534,7 +534,7 @@ def restore_blocked_models():
             effective_limit = get_effective_limit(clean_model, original_api_base)
 
             should_restore = False
-            if not effective_limit:
+            if effective_limit is None:
                 should_restore = True
             else:
                 usage_key = get_usage_key(clean_model, original_api_base)
@@ -598,7 +598,7 @@ def startup_audit():
             # We use effective limit logic which checks both static and dynamic
             effective_limit = get_effective_limit(clean_model, api_base)
 
-            if not effective_limit:
+            if effective_limit is None:
                 continue
 
             usage_key = get_usage_key(clean_model, api_base)
@@ -714,14 +714,14 @@ class DailyLimitHandler(CustomLogger):
                 key_display = key.split(":", 2)[-1]
                 # Display Limit clearly
                 limit_str = (
-                    f" | Limit: {int(effective_limit):,}" if effective_limit else ""
+                    f" | Limit: {int(effective_limit):,}" if effective_limit is not None else ""
                 )
                 log(
                     f"📊 [Usage] {key_display}: +{total_tokens} (Today: {current_total:,}{rem_display}{limit_str})",
                     level="INFO",
                 )
 
-                if effective_limit and float(current_total) >= float(effective_limit):
+                if effective_limit is not None and float(current_total) >= float(effective_limit):
                     log(
                         f"🚫 [BLOCK] {clean_model} Limit Hit: {current_total}/{effective_limit}",
                         level="WARNING",