V1.1.0: Collection mentions and Vite+ 1.5.0

Added

• Collection mentions in the shared Markdown editor through grouped @
  autocomplete and the slash menu. Mentions save as /collections/{slug}
  Markdown links and return as badges when the editor is reopened.
• Public collection badges with hover previews showing the collection name,
  description, type, and project count. Supported content includes project
  pages, blogs, collection articles, and About.
• Collection mention lookup follows public visibility rules. Draft or unavailable
  collections do not appear in suggestions or previews; existing links remain
  ordinary links when public metadata is unavailable.

Changed

• Upgrade Vite+ and its Vite package alias from 1.4.0 to 1.5.0 and refresh
  the dependency lockfile.

Upgrade notes

• Deploy the API and web from the same v1.1.0 tag so collection mention lookup
  and rendering stay in sync. This release adds no database migrations or
  environment variables.
• Existing Markdown links to eligible public collections gain badges and hover
  previews automatically; no content migration is required.

Full Changelog: v1.0.0...v1.1.0