docs(enterprise-portal): document namespace prop for HelmInstallAssets

[kriscoleman]

What

Documents a new optional namespace prop on the <HelmInstallAssets /> component in the Enterprise Portal v2 content reference (docs/vendor/enterprise-portal-v2-content.mdx).

When set, the generated Helm install command includes --namespace <namespace>, so the app installs into that namespace. When omitted, the install uses the default namespace, so existing content is unchanged.

Why

Some customers always install into a fixed namespace. Today the generated command uses the default namespace, so those customers have to hand-edit the copied command every time. The namespace prop lets vendors bake the right namespace straight into the install page and remove that friction.

Examples added

The common case, a single fixed namespace for everyone:

<HelmInstallAssets namespace="my-namespace" />

And an extensible version that defaults to my-namespace but lets a helm_namespace custom license field override it per customer:

<HelmInstallAssets namespace={entitlements.helm_namespace || "my-namespace"} />

Notes

This pairs with the vandoor code PR that adds the namespace prop to <HelmInstallAssets />. The docs shouldn't land ahead of that, so I'm leaving this as a draft until the code side is in.

🤖 Generated with Claude Code

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[kriscoleman]

UAT:

[xavpaice]

Nits, not blockers:

• the description inline for the options is substantially more detailed than other options, can we narrow that down to the essential text given that it is explained properly in its own section?
• there's no --create-namespace, which is fine, but we should probably mention that in the docs

[kriscoleman]

Thanks @xavpaice, both addressed in 3adae71:

• Trimmed the inline namespace descriptions on all three Helm components down to match the charts/exclude style, since the detail already lives in the "Installing into a specific namespace" section. As a bonus this clears the vale semicolon/sentence-length nits too, since those were flagging those same sentences.
• Added a note in that section that the generated commands do not include --create-namespace, so the target namespace needs to exist first.

[kriscoleman]

Heads-up on merge ordering: this doc now describes the full-stack namespace behavior shipping in vandoor #10306 (namespace as an install-time prop on HelmInstallAssets/HelmAirgapInstallAssets, upgrades auto-targeting the persisted install namespace, --create-namespace on install, {{entitlements.helm_namespace}} for per-customer, DNS-1123 validation in preview). So this should merge with or after #10306, not before — otherwise the docs describe behavior that is not live yet. #10306 is CI-green and review-ready.

[github-actions]

📝 [vale] _{reported by reviewdog 🐶}
[Replicated.Passive] In general, use active voice instead of passive voice ('is created').