Add SkillHub app mapping to deployment app resolver

[Copilot]

The issue requested support for skillhub. The deployment resolver did not recognize SkillHub, so tasks referencing it could not be mapped to a launchable package.

• App resolution update

  • Extended the deployment app-name → package mapping in deployment/server.py to include SkillHub:
    • SkillHub → com.skillhub
  • This plugs directly into existing try_find_app behavior, enabling SkillHub detection from task text and returning an open_app action with the correct package.

• Scope

  • Single-file, mapping-only change.
  • No planner/decider flow changes, no schema/API changes.

supported_apps = {
    # ...
    "SkillHub": "com.skillhub",
}

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