Propagate serviceName through inspector stat pipeline

[minwoo-jung]

Summary

Propagate serviceName through inspector stat pipeline, enabling service-level data filtering for inspector stat queries.

Changes

Inspector web query pipeline

• InspectorDataSearchKey: add serviceName field
• InspectorQueryParameter, InspectorQueryGroupParameter: add serviceName field
• AgentInspectorStatController, ApplicationInspectorStatController: pass serviceName from @ServiceParam to InspectorDataSearchKey
• AgentStatService, DefaultAgentStatService: propagate serviceName to DAO layer
• AgentStatDao, PinotAgentStatDao: propagate serviceName in ByAgentIds methods

AgentWarningStatService

• AgentWarningStatService interface: add serviceName parameter to select()
• AgentWarningStatServiceImpl: use serviceName parameter instead of ServiceConstants.DEFAULT
• EmptyAgentWarningStatService: match updated interface
• AgentInfoService, AgentInfoServiceImpl: propagate serviceName from controller
• AgentInfoController: pass serviceName.getName() to service layer

Inspector collector (ApplicationStat)

• ApplicationStat: add serviceName field to Kafka message model
• ApplicationStatModelConverter: pass serviceName from AgentStat to ApplicationStat

Note

MyBatis mapper XML WHERE clause changes are not included in this PR (to be handled separately).