✨ Better mouse handling

[mrkai77]

• Added a new MouseInteractionObserver class that tracks mouse movement and clicks while Loop is active.
• Radial menu window actions are now stored in an array rather than mapped by direction. This allows new radial menu actions to be added simply by appending to the array, forming part of the upcoming radial-menu customization features.
• Introduced a new window-action enum for the radial menu: RadialMenuWindowAction, with two cases: custom, which defines an entirely new action, and keybindReference, which links to one of the user’s existing keybinds by UUID. This also supports radial-menu customization.
• Updated WindowActionCache to include an additional dictionary that can store window actions by either keybind or identifier, speeding up the ID -> action lookup path.

[Copilot]

Pull request overview

This PR refactors mouse handling in Loop by extracting mouse interaction logic into a dedicated observer class and consolidating radial menu actions into a unified configuration system.

Key Changes:

• Introduced MouseInteractionObserver to encapsulate mouse event handling previously spread across LoopManager
• Refactored radial menu actions from individual Defaults keys to a single unified radialMenuActions array using RadialMenuWindowAction enum
• Renamed observer classes from *Observer to *Trigger for clarity, and introduced helper classes TriggerDelayTimer and DoubleClickTimer

Reviewed changes

Copilot reviewed 12 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Loop/Extensions/Logger+Extensions.swift	Added convenience initializer for Logger to simplify category-based logging
Loop/Extensions/Defaults+Extensions.swift	Consolidated keybind and radial menu defaults to use centralized static properties instead of inline definitions
Loop/Core/WindowDragManager.swift	Added @mainactor annotation to addObservers method for thread safety
Loop/Core/Observers/MouseInteractionObserver.swift	New class to handle mouse interactions including radial menu navigation and cycle actions
Loop/Core/Observers/MiddleClickTrigger.swift	Renamed from MiddleClickObserver for consistency
Loop/Core/Observers/KeybindTrigger.swift	Renamed from KeybindObserver, refactored to use shared WindowActionCache
Loop/Core/Observers/Helpers/TriggerDelayTimer.swift	New utility class for managing trigger delay timer logic
Loop/Core/Observers/Helpers/DoubleClickTimer.swift	New utility class for detecting double-click events
Loop/Core/LoopManager.swift	Major refactoring to delegate mouse handling to MouseInteractionObserver and use renamed trigger classes

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