feat: add activity history, insights, and cat usage events

- Add activity history collection for cat usage events
- Add insight metrics (total cycles, average cycles, cycles today)
- Add cat usage events with weight for LR4
- Add intermediate state events (cycle started, cycle complete, etc.)
- Add pet visits_24h metric from weight history
- Add new LR4 metrics: lifetime_cycles, dfi_trigger_count, cat_detected
- Add configurable activity lookback window to prevent duplicate events
- Add API call delays to avoid rate limiting
- Update default poll interval to 5 minutes
- Update documentation with new metrics and events

config.example.yaml

@@ -15,6 +15,10 @@ datadog:
 
 # Collector settings
 collector:
-  poll_interval_seconds: 120  # How often to collect metrics (default: 2 minutes)
+  poll_interval_seconds: 300  # How often to collect metrics (default: 5 minutes)
   include_pets: true  # Include pet profile metrics
   emit_events: true  # Emit Datadog events for state changes
+  collect_activity_history: true  # Fetch activity history for cat usage events
+  collect_insights: true  # Fetch insight data (cycle counts, averages)
+  api_call_delay_seconds: 1.0  # Delay between API calls to avoid rate limits
+  activity_lookback_minutes: 10  # Only emit events for activities within this window