Improve Algora source configuration support

[zscy0710]

Summary

Tighten up the existing Algora integration so it is easier to configure, validate, and operate.

Fixes #83

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation update
• Security fix

Related Issues

Fixes #83

Changes Made

• allow dynamic source configuration previews for both github and algora in /api/v1/sources
• add route tests covering Algora source exposure and Algora configuration preview
• keep unsupported source types rejected
• document the current Algora bounty integration and sync flow in the README

Testing

• Tests pass locally
• New tests added (if applicable)
• Manual testing performed

Ran:
bun test:run src/app/api/v1/sources/route.test.ts src/lib/aggregator/sources/algora.test.ts src/lib/aggregator/sync.test.ts

Security Checklist

• No secrets or API keys committed
• Input validation added for user inputs
• No SQL injection vulnerabilities
• Rate limiting considered
• Audit logging added (if applicable)

Documentation

• README updated (if needed)
• API docs updated (if needed)
• Comments added for complex logic

[vercel]

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[DrDrewCain]

Hey. I will have to take a look and test this!