Update kagent 1.x and kmcp reference docs (version conrefs changed)

[github-actions]

Regenerates the kagent 1.x API and Helm references, the kmcp API reference, and the version conrefs at a released tag. Everything below was generated from these, and nothing here was read from either repository's main:

• kagent: v1.0.0-alpha2 (373b56b)
• kmcp: v0.4.0 (8f26f04)

versions/kagent.md moves to 1.0.0-alpha2 in this run, so the helm install --version lines on the 1.x pages and the reference content beside them describe the same release.

Important

A version conref moved in this run, so this is not a routine regeneration.
These values render into helm install --version lines that readers copy out of
setup/installation.md, observability/tracing.md, and observability/audit-prompts.md.
Merging asserts the guides work against the versions below, so re-test the affected
guides rather than merging on green CI alone.

-{{< version include-if="0.x" >}}0.0.9{{< /version >}}{{< version include-if="1.x" >}}0.2.0-beta4{{< /version >}}
+{{< version include-if="0.x" >}}0.0.9{{< /version >}}{{< version include-if="1.x" >}}0.2.0-beta5{{< /version >}}
-{{< version include-if="0.x" >}}0.10.1{{< /version >}}{{< version include-if="1.x" >}}1.0.0-alpha1{{< /version >}}
+{{< version include-if="0.x" >}}0.10.1{{< /version >}}{{< version include-if="1.x" >}}1.0.0-alpha2{{< /version >}}
-ghcr.io/kagent-dev/kagent/claude-harness@sha256:23b59459d66ce3162892239b035ba924cd1d64a6e3826db277599e9a98b2f36a
+ghcr.io/kagent-dev/kagent/claude-harness@sha256:6794f2d25be053766030dcd15aa0da58747a425bcf423e851ad0b6870d79d1b5
-ghcr.io/kagent-dev/kagent/golang-adk@sha256:c8ab012e9774d50e20ffa8cd035ddebff69486a2843b3af281f5f6ebc67ab512
+ghcr.io/kagent-dev/kagent/golang-adk@sha256:0ef67974d39518b18de074bd9762fb4aea9764fc8836eeb45d7868b358eecb30

Version conrefs in this run. Each is read from the same place kagent's own build reads it, at the tag above, except the two runtime images, which are resolved from the registry because a digest exists only once the image is pushed:

Conref	Value	Source
agent-substrate (1.x span only)	0.2.0-beta5	go/go.mod replace target
kmcp	0.3.0	go/go.mod require (what kagent bundles)
kmcp-latest	0.4.0	kmcp's latest release (what the kmcp guides show)
kagent-tools	0.2.1	helm/kagent/Chart-template.yaml
max-kube (both committed copies)	1.35	Makefile KIND_IMAGE_VERSION
kagent (1.x span only)	1.0.0-alpha2	the release tag this run documents
runtime-image	ghcr.io/kagent-dev/kagent/golang-adk@sha256:0ef67974d39518b18de074bd9762fb4aea9764fc8836eeb45d7868b358eecb30	GHCR, at v1.0.0-alpha2
runtime-image-claude	ghcr.io/kagent-dev/kagent/claude-harness@sha256:6794f2d25be053766030dcd15aa0da58747a425bcf423e851ad0b6870d79d1b5	GHCR, at v1.0.0-alpha2

Unchanged conref values are normal: most runs touch only the generated reference pages.

This PR was automatically generated by the Update Reference documentation workflow.