Fixed VirtualMCPCompositeToolDefinition printer columns output

[Sanskarzz]

Summary

• Fixes broken Steps and Refs printer columns for VirtualMCPCompositeToolDefinition, which previously used JSONPath wildcards with integer column types and could not display useful counts in kubectl get output.
• Adds status.stepCount and status.refCount scalar fields and updates the v1alpha1 and v1beta1 printer columns to read those values.
• Adds a VirtualMCPCompositeToolDefinition reconciler that maintains step counts, referencing VirtualMCPServer names, and reference counts, including cleanup when references are removed.
• Registers the reconciler, grants status-update RBAC, and regenerates the CRD manifests and API documentation.

Fixes #4619

Type of change

• Bug fix
• New feature
• Refactoring (no behavior change)
• Dependency update
• Documentation
• Other (describe):

Test plan

• Targeted unit tests (go test ./cmd/thv-operator/api/v1alpha1 ./cmd/thv-operator/api/v1beta1 ./cmd/thv-operator/controllers ./cmd/thv-operator/app -run 'TestVirtualMCPCompositeToolDefinitionReconciler_Reconcile|^$' -count=1)
• Targeted vet (go vet ./cmd/thv-operator/api/v1alpha1 ./cmd/thv-operator/api/v1beta1 ./cmd/thv-operator/controllers ./cmd/thv-operator/app)
• Generated artifacts (task operator-generate, task operator-manifests, task crdref-gen)
• Diff validation (git diff --check)

API Compatibility

• This PR does not break the v1beta1 API, OR the api-break-allowed label is applied and the migration guidance is described above.

Changes

File	Change
cmd/thv-operator/api/v1beta1/virtualmcpcompositetooldefinition_types.go	Adds count fields and corrected printer column JSONPaths.
cmd/thv-operator/api/v1alpha1/types.go	Updates deprecated-version printer column JSONPaths.
cmd/thv-operator/controllers/virtualmcpcompositetooldefinition_controller.go	Reconciles step and VirtualMCPServer reference counts.
cmd/thv-operator/controllers/virtualmcpcompositetooldefinition_controller_test.go	Covers count population and stale reference cleanup.
cmd/thv-operator/app/app.go	Registers the new reconciler.
Generated CRD/RBAC/docs output	Publishes status schema, corrected columns, status permission, and API docs.

Does this introduce a user-facing change?

Yes. kubectl get virtualmcpcompositetooldefinitions now shows integer values for the Steps and Refs columns instead of empty or malformed output from array wildcards.

Special notes for reviewers

In the current CRD, Refs represents VirtualMCPServer resources that reference a composite workflow through spec.config.compositeToolRefs. The reconciler preserves and maintains the existing status.referencingVirtualServers field while exposing its count through status.refCount.

[codecov]

Codecov Report

❌ Patch coverage is 33.82353% with 45 lines in your changes missing coverage. Please review.
✅ Project coverage is 68.71%. Comparing base (2043cf6) to head (b26b708).

Files with missing lines	Patch %	Lines
...rs/virtualmcpcompositetooldefinition_controller.go	35.93%	37 Missing and 4 partials ⚠️
cmd/thv-operator/app/app.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5380      +/-   ##
==========================================
- Coverage   68.81%   68.71%   -0.10%     
==========================================
  Files         627      628       +1     
  Lines       63594    63662      +68     
==========================================
- Hits        43762    43746      -16     
- Misses      16583    16661      +78     
- Partials     3249     3255       +6     

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