Add monitoring service and database schema

- Implement monitoring service with heartbeat, lease tasks, resume tasks, and task result handling.
- Create monitoring time utilities for business date calculations.
- Add unit tests for date window resolution and business day handling.
- Define database schema for monitoring-related tables including quotas, daily reports, and task management.
- Establish migration scripts for creating and dropping monitoring tables.

server/configs/config.local.yaml.example

@@ -12,6 +12,28 @@ database:
   password: geo_dev
   dbname: geo
 
+monitoring_database:
+  host: localhost
+  port: 5433
+  user: geo
+  password: geo_dev
+  dbname: geo_monitoring
+  sslmode: disable
+  max_open_conns: 25
+  max_idle_conns: 5
+
+rabbitmq:
+  url: amqp://geo:geo_dev@localhost:5672/geo
+  monitor_result_exchange: monitor.result
+  monitor_result_routing_key: monitor.result.ingest
+  monitor_result_queue: monitor.result.ingest
+  monitor_result_dlx: monitor.result.dlx
+  monitor_result_dlq: monitor.result.ingest.dlq
+  monitor_result_dlq_routing_key: monitor.result.ingest.dlq
+  consumer_prefetch: 10
+  # Prefer environment override when needed:
+  # export RABBITMQ_URL=amqp://geo:geo_dev@localhost:5672/geo
+
 redis:
   addr: localhost:6379