docs: replace the expired Discord invite with a permanent one

[zeshi-du]

What

The Discord invite W4JDrZfdB that the README, CONTRIBUTING.md and all three .github/ISSUE_TEMPLATE/* contact links point at has expired. Every "join our Discord" link a reader could click — from the npm page, this README, or the "New issue" chooser — was dead.

This swaps all 8 occurrences (5 files) for GXWFjCe4an, the permanent invite the TestSprite website already uses. The discord.gg/ short form is kept so the diff is the invite code alone.

Verification

Checked both codes against GET https://discord.com/api/v10/invites/<code> on 2026-09-02:

Code	Result
W4JDrZfdB (old)	{"message": "Invite is expired.", "code": 50270}
GXWFjCe4an (new)	TestSprite guild, expires_at: null

• git grep W4JDrZfdB on this branch → 0 hits; git grep -c GXWFjCe4an → 8 across the 5 files.
• prettier --check on the touched files passes.

Doc-only change: no CHANGELOG entry, since the changelog records CLI behaviour.

🤖 Generated with Claude Code

https://claude.ai/code/session_01UgrEfHjWEvquiBerPXicWh

Summary by CodeRabbit

• Documentation
  • Updated Discord community invite links across the README, contribution guide, and issue templates.
  • Users seeking support, usage guidance, or contribution help are now directed to the updated community invite.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Team

Run ID: a85b2b19-9471-4fd6-9fca-10fcfec99307

📥 Commits

Reviewing files that changed from the base of the PR and between 89807aa and 6ec9095.

📒 Files selected for processing (5)

• .github/ISSUE_TEMPLATE/bug_report.yml
• .github/ISSUE_TEMPLATE/config.yml
• .github/ISSUE_TEMPLATE/hackathon_improvement.yml
• CONTRIBUTING.md
• README.md

Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review.

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Walkthrough

Updated Discord invite URLs in three issue templates, CONTRIBUTING.md, and README.md. All changed links now use https://discord.gg/GXWFjCe4an.

Changes

Discord Invite URL Update

Layer / File(s)	Summary
Update Discord support links .github/ISSUE_TEMPLATE/*, CONTRIBUTING.md, README.md	Replaced the previous Discord invite URL in issue-template guidance, contribution instructions, README badges, help text, and support links.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to 6ec90

This PR updates expired Discord links to a permanent invite without changing product or runtime behavior. No actionable merge-blocking risk remains after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main documentation change: replacing the expired Discord invite with a permanent invite across the repository.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (5 skipped: 5 unsupported.)

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/replace-expired-discord-invite

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[github-actions]

Test Coverage Report

Metric	Coverage
Lines	88.13%
Statements	88.13%
Functions	83.88%
Branches	87.47%