feat: version 3.2.0 (#38)

[franverona]

Issues:

• Close feat: emit custom DOM events (e.g. loadgo:complete at 100%) #22
• Close feat: autoStop, onThreshold callbacks, and progress label #39
• Close feat: pause() and resume() methods for loop control #43
• Close feat: Loadgo.initAll(selector, options) for batch initialization #45

Added

• Native CustomEvent dispatching across all lifecycle methods in both jQuery and vanilla implementations.
• Full TypeScript event types: LoadgoEventMap and augmented HTMLImageElement.addEventListener overloads.
• setprogress() now dispatches loadgo:error when called on an uninitialized element.
• Interactive demo pages for jQuery and Vanilla JS.
• New property called onTreshold: map of progress values (0–100) to callbacks. Each callback fires once when progress first reaches or crosses its key.
• Added pause and resume to CUSTOM_EVENTS
• loop() now stores loopDuration and syncs loopToggle (the direction flag) into element state on each tick
• Loadgo.pause() / $el.loadgo('pause'): clears the interval, sets paused: true, fires loadgo:pause with current
  progress — no-op if not looping
• Loadgo.resume() / $el.loadgo('resume'): restarts the interval from the saved loopToggle and current progress,
  fires loadgo:resume — no-op if not paused
• Vanilla version extracts a shared _startLoopInterval helper to avoid code duplication between loop() and resume()
• Added pause() and resume() to LoadgoAPI and jQuery JQuery interface
• Added loadgo:pause and loadgo:resume to LoadgoEventMap (typed as CustomEvent<LoadgoDetail>)
• Added Loadgo.initAll(selector, options) for vanilla-JS plugin which allows batch-initializing multiple elements in one call.

Changed

• loadgo:options detail is now a shallow copy of the merged options object, preventing internal state mutation.
• Events with no payload (loadgo:init, loadgo:start, loadgo:cycle, loadgo:destroy) set event.detail to null instead of undefined.
• $filter renamed to filter in jQuery _setprogress internal helper.

Fixed

• resetprogress() now guards against calls on uninitialized elements (prevented spurious loadgo:reset events).

Events reference

Event	Fires when	event.detail
loadgo:init	init() completes	null
loadgo:error	invalid usage (non-img element, loop/stop on uninitialized, double loop)	{ message: string }
loadgo:options	options() is called as a setter after init	merged LoadgoOptions object
loadgo:progress	setprogress() is called	{ progress: number }
loadgo:complete	progress reaches 100 outside of a loop	{ progress: 100 }
loadgo:reset	resetprogress() is called	{ progress: 0 }
loadgo:start	loop() starts	null
loadgo:cycle	loop completes one full back-and-forth	null
loadgo:stop	stop() is called	{ progress: 100 }
loadgo:destroy	destroy() completes	null