consuelo-os-v0.1.11

Stream/os (#1744)

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## Summary by CodeRabbit

* **New Features**
* Hosted installations now download and verify signed, platform-specific
runtime releases before activation.
* Bundled skills and user-owned content are managed in visible
`~/Consuelo` directories, with improved preservation of customizations.
  * Local agent integrations now use the unified “os” connection.
* Homepage hero content and navigation are data-driven, with updated
accessibility labels and pricing/cloud links.
* **Bug Fixes**
* Improved animation behavior for reduced motion, hidden pages, and page
navigation.
* Strengthened release validation and recovery for incomplete or invalid
installations.

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