feat: add agent zones

sql/verify-development-schema.sql

@@ -26,6 +26,8 @@ WITH expected(table_name) AS (
         ('miner_pool_snapshots'),
         ('miner_api3_enrichment_snapshots'),
         ('miner_api3_hashboard_snapshots'),
+        ('agent_zones'),
+        ('agent_zone_network_ranges'),
         ('minerops_site_agents'),
         ('minerops_agent_snapshots'),
         ('minerops_agent_command_results'),