Yutpeng/autoscaler updates

[yutpeng]

Description

Summary:

• Remove unsupported CR namespace override fields:
  • spec.capi.namespace
  • spec.clusterAutoscaler.namespace
• Keep namespace selection as deployment-level operator configuration.
• Update CRD schema, OLM examples, and documentation so exposed API fields match runtime behavior.
• Allow partial shapeConfig overrides by making cpus and memory nullable/optional while still validating positive effective values.
• Add component/subcomponent labels to managed resources for clearer ownership and cleanup behavior.
• Mount writable /tmp for the manager container because the container uses HOME=/tmp and XDG_CACHE_HOME=/tmp/.cache with a read-only root filesystem.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Test Configuration:

• Firmware version:
• Hardware:
• Toolchain:
• SDK:

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules