Match Windows ZoomIt behavior: bug fixes and UI polish

[markrussinovich]

Summary

A batch of bug fixes and UI polish to bring ZoomIt for Mac closer to the Windows ZoomIt behavior. Each change is committed individually and covered by the ZoomItMacSelfTest self-test suite (all passing).

Behavior fixes (Windows parity)

• Static zoom stays active at 1x instead of exiting when you zoom all the way out (only Esc/right-click exits). Live zoom still exits at the floor.
• Break timer custom background image no longer rendered upside down (flip-aware drawing in the flipped view).
• Panorama region rectangle rendered in a distinct color, and Escape now cancels/exits panorama during the scrolling capture.
• Screen saver / display sleep is blocked while the break timer is on (IOKit power assertion).
• Menu-bar menu reordered to match Windows (Options first, then modes, then Check Permissions/Quit); added a Draw item.
• Clip editor: changing the transition (e.g. Fade to Black → Fade to White) now updates existing joins and the preview.
• Webcam overlay can be click-dragged to reposition (recorded composite follows).
• Trim: editing an existing video no longer deletes the original file (copy vs. move).
• Settings window floats on top so it can't get lost behind other windows (which left hotkeys suspended and the app seemingly unresponsive).

Options dialog (match Windows)

• Split Live Zoom into its own tab so the Zoom tab holds static-zoom settings only.
• Draw tab: removed "default pen width"; blank-screen is now Ctrl+W / Ctrl+K with matching help text.
• Type tab: the "Sample" preview now renders in the selected font.

UI polish

• Padded the menu-bar (tray) icon so it matches system icon size/alignment.
• Moved the Break Timer menu item below Panorama Capture.
• Permissions dialog uses a standard rounded-square icon, aligned with the heading text.
• Default typing font is the Mac system font at 20pt, regular (non-bold) weight.
• Aligned the Break tab controls (timer, colors, position, opacity, backdrop) in a grid.
• Panorama region rectangle set to blue to stay distinct from the orange screen-recording border.

Not included

• The Draw-tab blur tool (a larger feature spanning the live/record/export pipeline) is deferred and not part of this PR.

Testing

• swift build succeeds.
• swift run ZoomItMacSelfTest passes (new tests added for each behavioral change).

[Copilot]

Pull request overview

This PR batches a set of behavior fixes and UI polish changes to bring ZoomIt for Mac closer to Windows ZoomIt parity, including options-dialog structure, input behavior, capture/overlay behavior, and visual alignment tweaks.

Changes:

• Refactors/updates the Settings (Options) UI: separate Live Zoom tab, grid-aligned Break tab, always-on-top settings window, corrected Draw/Type tab behaviors.
• Improves parity and UX across modes: static zoom no longer exits at 1x, panorama selection border is distinct (blue) and Escape cancels capture, break-timer background drawing respects flipped coordinates, break timer prevents idle display sleep.
• Adds/updates self-tests covering the newly introduced behaviors and regressions.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
Sources/ZoomItMacCore/Settings/SettingsWindowController.swift	Splits Live Zoom into its own tab, adds always-on-top behavior, refactors Break tab layout into a grid, updates Draw/Type tab behavior.
Sources/ZoomItMacCore/Settings/SettingsStore.swift	Adjusts default typing font size to 20pt for Windows parity/UI polish.
Sources/ZoomItMacCore/SelfTest/SelfTestRunner.swift	Adds self-tests validating the new parity behaviors and UI rendering expectations.
Sources/ZoomItMacCore/Overlay/ZoomCanvasView.swift	Updates W/K drawing shortcuts to use Ctrl for blank-screen and adds helper decision function.
Sources/ZoomItMacCore/Overlay/BreakTimerController.swift	Fixes break-timer background rendering in flipped views; acquires/releases idle-sleep assertion during break timer.
Sources/ZoomItMacCore/Core/ModeCoordinator.swift	Changes zoom-out floor behavior so static zoom stays active at 1x while live zoom still exits.
Sources/ZoomItMacCore/Capture/WebcamOverlayController.swift	Makes the webcam overlay draggable and keeps the recorded composite frame in sync.
Sources/ZoomItMacCore/Capture/VideoClipEditorController.swift	Ensures changing the transition updates existing append joins and refreshes preview/timeline.
Sources/ZoomItMacCore/Capture/SnipController.swift	Adds border-color customization and a render-for-testing helper for selection UI.
Sources/ZoomItMacCore/Capture/RecordingController.swift	Preserves original file when trimming by choosing copy vs move based on edit output.
Sources/ZoomItMacCore/Capture/PanoramaController.swift	Adds Escape-to-cancel capture behavior and uses blue selection border for panorama region selection.
Sources/ZoomItMacCore/App/IdleSleepAssertion.swift	Introduces an injectable IOKit assertion wrapper to prevent idle display sleep during break timer.
Sources/ZoomItMacCore/App/AppIcon.swift	Adds a standardized rounded-square icon renderer for dialogs/pickers.
Sources/ZoomItMacCore/App/AppDelegate.swift	Reorders status menu via a declarative entry list; adds Draw item; pads menu-bar icon rendering.
Sources/ZoomItMacCore/App/AppController.swift	Adds Draw activation hook and switches permissions dialog icon to the standard rounded-square icon.
Sources/ZoomItMacCore/Annotations/AnnotationController.swift	Updates default typing font size and changes fallback system font weight to regular.

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