feat(gnofaucet): Github middleware with cooldown

[Villaquiranm]

related to #3781
Related faucet-hub PR:
gnolang/faucet-hub#41

This pull request introduces two key features to gnofaucet:

getGithubMiddleware: A new middleware that checks for a code query parameter in the URL. It attempts to exchange this code for a GitHub token via OAuth. If the code is valid, the middleware retrieves the GitHub login associated with the token.

Cooldown Period: This feature allows for a configurable cooldown period (1 hour in this case). If the user attempts to claim tokens again before the cooldown period expires, the middleware will reject the request.

Additionally, we could enhance the functionality by implementing checks for account age, pull requests, commits, or verifying if the user belongs to a specific organization.

screen-capture.8.webm

[Gno2D2]

🛠 PR Checks Summary

All Automated Checks passed. ✅

Manual Checks (for Reviewers):

• IGNORE the bot requirements for this PR (force green CI check)

Read More

🤖 This bot helps streamline PR reviews by verifying automated checks and providing guidance for contributors and reviewers.

✅ Automated Checks (for Contributors):

🟢 Maintainers must be able to edit this pull request (more info)
🟢 Pending initial approval by a review team member, or review from tech-staff

☑️ Contributor Actions:

1. Fix any issues flagged by automated checks.
2. Follow the Contributor Checklist to ensure your PR is ready for review.
   • Add new tests, or document why they are unnecessary.
   • Provide clear examples/screenshots, if necessary.
   • Update documentation, if required.
   • Ensure no breaking changes, or include BREAKING CHANGE notes.
   • Link related issues/PRs, where applicable.

☑️ Reviewer Actions:

1. Complete manual checks for the PR, including the guidelines and additional checks if applicable.

📚 Resources:

• Report a bug with the bot.
• View the bot’s configuration file.

Debug

Automated Checks

Maintainers must be able to edit this pull request (more info)

If

🟢 Condition met
└── 🟢 And
    ├── 🟢 The base branch matches this pattern: ^master$
    └── 🟢 The pull request was created from a fork (head branch repo: Villaquiranm/gno)

Then

🟢 Requirement satisfied
└── 🟢 Maintainer can modify this pull request

Pending initial approval by a review team member, or review from tech-staff

If

🟢 Condition met
└── 🟢 And
    ├── 🟢 The base branch matches this pattern: ^master$
    └── 🟢 Not (🔴 Pull request author is a member of the team: tech-staff)

Then

🟢 Requirement satisfied
└── 🟢 If
    ├── 🟢 Condition
    │   └── 🟢 Or
    │       ├── 🔴 At least 1 user(s) of the organization reviewed the pull request (with state "APPROVED")
    │       ├── 🔴 At least 1 user(s) of the team tech-staff reviewed pull request
    │       └── 🟢 This pull request is a draft
    └── 🟢 Then
        └── 🟢 Not (🔴 This label is applied to pull request: review/triage-pending)

Manual Checks

**IGNORE** the bot requirements for this PR (force green CI check)

If

🟢 Condition met
└── 🟢 On every pull request

Can be checked by

• Any user with comment edit permission

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 63 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
contribs/gnofaucet/gh.go	50.94%	26 Missing ⚠️
contribs/gnofaucet/serve.go	0.00%	23 Missing ⚠️
contribs/gnofaucet/coins.go	60.00%	13 Missing and 1 partial ⚠️

📢 Thoughts on this report? Let us know!