Fix defects in new-plugin/new-extension/new-timeline scaffolds

[jodeleeuw]

Fixes several defects encountered while using the new-plugin scaffold (and the equivalent bugs in new-extension / new-timeline).

Fixes

• CITATION.cff (new-plugin, new-extension): stop injecting the full author name into family-names, given-names, and name-particle simultaneously, and remove the {email} / {softwareUrl} / {title} / {linkToPublicationInJournal} placeholders that were never substituted. These are now clean fill-in fields.
• README "Loading" snippet (new-plugin, new-extension): import from the scoped npm package name (e.g. @jspsych-contrib/plugin-x instead of plugin-x) and close the in-browser <script> tag.
• examples/index.html (all packages): load the local build as a live <script> instead of leaving it commented out inside the "once published" block. This was fatal for the JS templates, which previously had no live local script at all.
• new-timeline build: emit the browser bundle as dist/index.browser.min.js (via a new tsup.config.ts) to match the unpkg field and the other packages, instead of dist/index.global.js.
• .gitignore scaffolding: generated packages now include a .gitignore (ignoring dist/ and node_modules/). The template ships as gitignore and is renamed during scaffolding so npm doesn't rewrite it to .npmignore on publish. Adopted PR auto-generate documentation from JSDoc strings for timelines  #38's dot: true glob option as well.

Notes / relationship to #38

This overlaps with #38 (generate-readme-from-docstrings) and will conflict in two places where these are the more complete fixes:

• new-plugin / new-extension cli.js publishing-comment block
• new-timeline/templates/timeline-template-ts/package.json (this PR switches build to tsup + a config file; auto-generate documentation from JSDoc strings for timelines  #38 adds an update-readme script + @jspsych-dev/generate-timeline-docs dep). These two need hand-merging.

Verification

• All three cli.js files parse (node --check).
• The tsup browser-bundle rename and the gitignore → .gitignore scaffolding rename were not run end-to-end (template node_modules aren't installed in this checkout) — worth a quick npx @jspsych/new-plugin / new-timeline smoke test before release to confirm a generated package contains .gitignore and dist/index.browser.min.js.

🤖 Generated with Claude Code

[changeset-bot]

🦋 Changeset detected

Latest commit: f7454a7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@jspsych/new-plugin	Patch
@jspsych/new-extension	Patch
@jspsych/new-timeline	Patch

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