chore: bump website submodule to the October docs sync

[ValgulNecron]

Summary

Bumps the website submodule from bbaeba4 to 7b28a3b (ValgulNecron/gameplane-website#9, merged).

That website PR brings the public docs in line with this repo's docs, CHANGELOG and Helm chart values since 2026-09-26:

• Two new pages: Remote agent gateway and Server networking & tunnels.
• Corrected pages for the multicluster gateway, installation and Helm values, upgrade notes, and auth.
• website.pen updated to match: 37 docs screens updated and 2 added, with exports.

Only the submodule pointer changes here; no code.

🤖 Generated with Claude Code

https://claude.ai/code/session_0153BeT3nUXo5japNTuJSPqb

Summary by CodeRabbit

• Chores
  • Updated the website component to a newer revision. The change summary does not specify what changed on the website or identify any particular end-user impact.

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between 046620e and 4fb48f4.

📒 Files selected for processing (1)

• website

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