Fix BaseTween callback types

[bagel786]

This PR

• Fixes a bug

Model BaseTween callback slots as the required nullable handler objects used at runtime, including their callback parameters. Add a TypeScript generation regression for every callback key.

Tests:

• npm run ts
• ESLint 8 on the changed JSDoc sources

Fixes #7353

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Continues #7358 — the fork repo backing that PR was accidentally deleted from this account, and GitHub blocks reopening a PR whose submitting repository was deleted (a restore request is being filed with GitHub Support). This PR resumes the identical work from the same commit (ce4ef80d995133a6bcdf44534bb0339c9ba79b4c); review discussion continues on the original PR.

[Copilot]

🔵 Needs a closer look

The shipped types/phaser.d.ts artifact still contains the incorrect callback declarations.

Pull request overview

Fixes BaseTween callback typings to match runtime handler objects and adds TypeScript regression coverage.

Changes:

• Adds nullable callback handler and parameter typings.
• Clarifies callback documentation.
• Adds generated TypeScript usage coverage.

File summaries

File	Summary
src/tweens/typedefs/TweenCallbacks.js	Defines corrected callback handler types.
src/tweens/tween/BaseTween.js	Updates callback documentation.
scripts/tsgen/test/src/game.ts	Verifies generated callback typings.

Review details

Suppressed comments (1)

src/tweens/typedefs/TweenCallbacks.js:6

• The package exports types/phaser.d.ts (package.json:12,17), but that generated file still declares TweenCallbacks as optional callback functions (types/phaser.d.ts:105134-105175). Running npm run ts may update it locally, but the declaration artifact is not included in this change, so package consumers will continue to see the incorrect API; regenerate and commit the published declaration (or otherwise update the shipped type artifact).

 * @typedef {object} Phaser.Types.Tweens.TweenCallbackData
 * @since 4.3.0
 *
 * @property {function} func - The callback function.
 * @property {array} params - Additional parameters to pass to the callback.

• Files reviewed: 3/3 changed files
• Comments generated: 0
• Review effort level: Lite

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