feat: add redis agent sidecar for role probe

[drivebyer]

Description

Fixes #ISSUE

Type of change

• New feature (non-breaking change which adds functionality)

Checklist

• Tests have been added/modified and all tests pass.
• Functionality/bugs have been confirmed to be unchanged or fixed.
• I have performed a self-review of my own code.
• Documentation has been updated or added where necessary.

Additional Context

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 362 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@47aad65). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
internal/controller/event/controller.go	0.00%	115 Missing ⚠️
internal/k8sutils/redis-agent.go	0.00%	72 Missing ⚠️
internal/agent/events/k8s_event.go	0.00%	61 Missing ⚠️
internal/agent/server/probe/role_detector.go	0.00%	58 Missing ⚠️
internal/cmd/agent/server/cmd.go	0.00%	18 Missing ⚠️
internal/agent/server/server.go	0.00%	14 Missing ⚠️
internal/k8sutils/redis-replication.go	0.00%	11 Missing ⚠️
internal/cmd/manager/cmd.go	0.00%	6 Missing ⚠️
internal/k8sutils/redis-cluster.go	0.00%	6 Missing ⚠️
internal/cmd/agent/cmd.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1394   +/-   ##
=======================================
  Coverage        ?   31.52%           
=======================================
  Files           ?       80           
  Lines           ?     7014           
  Branches        ?        0           
=======================================
  Hits            ?     2211           
  Misses          ?     4625           
  Partials        ?      178           

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