docs(background): reduce default background job interval from 15min to 5min

src/rotator_library/background_refresher.py

@@ -178,7 +178,7 @@ class BackgroundRefresher:
             self._provider_job_tasks[provider] = task
 
             job_name = config.get("name", "background_job")
-            interval = config.get("interval", 900)
+            interval = config.get("interval", 300)
             lib_logger.info(f"Started {provider} {job_name} (interval: {interval}s)")
 
     async def _run_provider_background_job(
@@ -197,7 +197,7 @@ class BackgroundRefresher:
             credentials: List of credential paths for this provider
             config: Background job configuration from get_background_job_config()
         """
-        interval = config.get("interval", 900)
+        interval = config.get("interval", 300)
         job_name = config.get("name", "background_job")
         run_on_start = config.get("run_on_start", True)
 

src/rotator_library/providers/antigravity_provider.py

@@ -1057,7 +1057,7 @@ class AntigravityProvider(
         and stores it in UsageManager for accurate quota estimation.
         """
         return {
-            "interval": self._quota_refresh_interval,  # default 900s (15 min)
+            "interval": self._quota_refresh_interval,  # default 300s (5 min)
             "name": "quota_baseline_refresh",
             "run_on_start": True,  # fetch baselines immediately at startup
         }

src/rotator_library/providers/provider_interface.py

@@ -576,7 +576,7 @@ class ProviderInterface(ABC):
         Returns:
             None if no background job, otherwise:
             {
-                "interval": 900,  # seconds between runs
+                "interval": 300,  # seconds between runs
                 "name": "my_job",  # for logging (e.g., "quota_refresh")
                 "run_on_start": True,  # whether to run immediately at startup
             }

src/rotator_library/providers/utilities/antigravity_quota_tracker.py

@@ -146,7 +146,7 @@ class AntigravityQuotaTracker:
     The provider class must initialize these instance attributes in __init__:
         self._learned_costs: Dict[str, Dict[str, float]] = {}
         self._learned_costs_loaded: bool = False
-        self._quota_refresh_interval: int = 900  # 15 min default
+        self._quota_refresh_interval: int = 300  # 5 min default
     """
 
     # Type hints for attributes that must exist on the provider