feat: add nextTick support, add arrConcat and fnBindArgs helpers

[nev21]

• Add a separate scheduleNextTick API with Node-native resolution and browser/worker fallback behavior.
• Preserve existing scheduleMicrotask semantics while sharing cancellable queue and timer-backed queue logic.
• Hook nextTick ordering into the timeout path so nextTick runs before microtasks and normal timers.
• update scheduleMicrotask and scheduleNextTick to support callback arguments consistently
• add arrConcat as a new array helper with tests
• add fnBindArgs as a dedicated helper for binding pre-supplied arguments
• improve fnBind typing with BoundFunction so bound argument prefixes narrow the returned signature

[codecov]

Codecov Report

❌ Patch coverage is 98.67374% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 99.35%. Comparing base (34178c1) to head (5e239fb).

Files with missing lines	Patch %	Lines
lib/src/timer/microtasks/promiseQueue.ts	95.45%	3 Missing ⚠️
lib/src/timer/microtasks/cancellableTask.ts	96.42%	1 Missing ⚠️
lib/src/timer/nextTick.ts	98.50%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #573      +/-   ##
==========================================
- Coverage   99.42%   99.35%   -0.07%     
==========================================
  Files         158      165       +7     
  Lines        4830     5089     +259     
  Branches     1039     1116      +77     
==========================================
+ Hits         4802     5056     +254     
- Misses         28       33       +5     

Files with missing lines	Coverage Δ
lib/src/array/concat.ts	100.00% <100.00%> (ø)
lib/src/funcs/fnBindArgs.ts	100.00% <100.00%> (ø)
lib/src/funcs/funcs.ts	100.00% <100.00%> (ø)
lib/src/funcs/types.ts	100.00% <ø> (ø)
lib/src/helpers/environment.ts	98.79% <100.00%> (+0.01%)	⬆️
lib/src/timer/microtask.ts	100.00% <100.00%> (ø)
lib/src/timer/microtasks/processNextTick.ts	100.00% <100.00%> (ø)
lib/src/timer/microtasks/resolveScheduleFn.ts	100.00% <100.00%> (ø)
lib/src/timer/microtasks/runMicrotask.ts	100.00% <100.00%> (ø)
lib/src/timer/microtasks/taskQueue.ts	100.00% <100.00%> (ø)
... and 4 more

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[Copilot]

Pull request overview

Adds a new scheduleNextTick API to the timer utilities, integrating it into the existing timeout/microtask scheduling so “next tick” work can be ordered ahead of microtasks and normal timers across environments.

Changes:

• Introduces scheduleNextTick with Node process.nextTick support and a timer-backed fallback queue.
• Refactors microtask/nextTick queuing into shared, timer-backed queue helpers and a shared cancellable-task helper.
• Updates tests and bundle size limits to account for the new API and refactor.

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
lib/src/timer/nextTick.ts	Adds the new scheduleNextTick API and process.nextTick detection/getter.
lib/src/timer/timeout.ts	Hooks pre-microtask flushing into the timeout callback path to preserve ordering.
lib/src/timer/microtask.ts	Switches microtask scheduling to the shared cancellable-task helper and enables pre-hook support.
lib/src/timer/microtasks/cancellableTask.ts	Introduces shared cancellable scheduling and the pre-microtask hook plumbing.
lib/src/timer/microtasks/timerBackedQueue.ts	Adds shared timer-backed queue logic used by microtasks/nextTick fallbacks.
lib/src/timer/microtasks/timerMicrotask.ts	Refactors the timer-backed microtask queue to use the shared queue helper.
lib/src/timer/microtasks/timerNextTick.ts	Adds timer-backed queue state and operations for nextTick fallback behavior.
lib/src/timer/microtasks/processNextTick.ts	Adds cached resolution of a process.nextTick-backed scheduler.
lib/src/helpers/environment.ts	Updates isNode() detection to use getInst("process") instead of direct process access.
lib/src/index.ts	Exports the new nextTick APIs from the package entrypoint.
lib/test/src/common/timer/nextTick.test.ts	Adds behavioral coverage for nextTick presence/ordering and fallback behavior.
lib/test/src/common/timer/timeout.test.ts	Adjusts refresh-behavior expectations using feature detection rather than isNode().
lib/test/bundle-size-check.js	Raises bundle thresholds slightly to accommodate the new functionality.
.size-limit.json	Updates size limits and adds size-limit checks for scheduleNextTick imports.

[nevware21-bot]

Approved by nevware21-bot

[nevware21-bot]

Approved by nevware21-bot

[Copilot]

Pull request overview

Copilot reviewed 17 out of 17 changed files in this pull request and generated 7 comments.

[nevware21-bot]

Approved by nevware21-bot

[Copilot]

Pull request overview

Copilot reviewed 17 out of 17 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 17 out of 17 changed files in this pull request and generated 3 comments.

[nevware21-bot]

Approved by nevware21-bot

[Copilot]

Pull request overview

Copilot reviewed 29 out of 29 changed files in this pull request and generated 6 comments.

[Copilot]

Pull request overview

Copilot reviewed 28 out of 28 changed files in this pull request and generated 3 comments.

[nevware21-bot]

Approved by nevware21-bot

[Copilot]

Pull request overview

Copilot reviewed 28 out of 28 changed files in this pull request and generated 2 comments.

[nevware21-bot]

Approved by nevware21-bot

[Copilot]

Pull request overview

Copilot reviewed 29 out of 29 changed files in this pull request and generated 17 comments.

Comments suppressed due to low confidence (1)

lib/src/timer/microtasks/runMicrotask.ts:31

• _runMicroTask now silently ignores falsy callbacks. Since the type is MicrotaskFn, this should always be callable; skipping invocation can hide programming errors and changes behavior (previously an invalid callback would be surfaced via the async rethrow path).

export function _runMicroTask(callback: MicrotaskFn): void {
    try {
        if (callback) {
            callback();
        }
    } catch (e) {
        scheduleTimeout(() => {
            throw e;
        }, 0);
    }
}

[Copilot]

Pull request overview

Copilot reviewed 29 out of 29 changed files in this pull request and generated 1 comment.

[nevware21-bot]

Approved by nevware21-bot