refactor(settings): split agent and conversation settings schemas #10949

Job	Run time
Check OpenAPI Schema	28s
build-binary-and-test (macos-latest)	2m 40s
Build & Push (python-arm64)	7m 19s
build-binary-and-test (ubuntu-latest)	2m 56s
Build & Push (java-amd64)	7m 37s
Build & Push (java-arm64)	8m 56s
Build & Push (golang-arm64)	7m 56s
Build & Push (python-amd64)	7m 41s
Build & Push (golang-amd64)	8m 0s
Merge Multi-Arch Manifests (java)	10s
Merge Multi-Arch Manifests (golang)	12s
Merge Multi-Arch Manifests (python)	11s
Consolidate Build Information	6s
Update PR description with agent server image	6s
	54m 18s

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