First public beta

Cogito's first public beta is now available as a signed macOS build with a drag-to-Applications DMG, folder-native browsing, source and preview editing, and manual zip-based beta updates.

Highlights

Recommended first install ships as a signed drag-to-Applications DMG.
Markdown source editing, rendered preview, and scroll-safe mode switching are all included in the beta.
Folder-native browsing supports create, rename, move, duplicate, trash, and live filesystem refresh.
Updates remain manual for now: existing testers can replace the app with the attached zip until Sparkle lands.

Cogito ships as a Mac-native Markdown editor for real folders on disk, with one note per window and no database or sync layer in the middle.
The first beta includes source editing for `.md`, `.markdown`, and `.txt`, plus a preview toggle for Markdown notes.
Files and folders can be created, renamed, moved, duplicated, trashed, and revealed from the sidebar browser.

Improved

The release pipeline now archives through Xcode, signs, notarizes, staples, and verifies the public app before packaging the DMG and ZIP.
The editor ships with native-feeling undo/redo, Find support, formatting shortcuts, clickable task toggles, and a clearer spellcheck policy.
Welcome and orientation polish now help first-time testers discover the core shortcuts and install flow faster.

Fixed

Autosave, conflict handling, duplicate-save recovery, and unavailable-file recovery are hardened for beta testing.
External file opening now reuses workspace windows more reliably instead of spawning duplicate windows.
Source and preview mode restoration is stable across note switches and repeated reopen flows.