Add fibersse — Production SSE for Fiber v3

[vinod-morya]

What is fibersse?

fibersse is a production-grade Server-Sent Events library built natively for Fiber v3 (fasthttp).

Forge link: https://github.com/vinod-morya/fibersse
pkg.go.dev: https://pkg.go.dev/github.com/vinod-morya/fibersse
goreportcard.com: https://goreportcard.com/report/github.com/vinod-morya/fibersse

Features

• Hub pattern with event coalescing (last-writer-wins)
• 3 priority lanes (Instant/Batched/Coalesced)
• NATS-style topic wildcards
• Adaptive per-connection throttling
• Built-in JWT + ticket auth helpers
• Prometheus metrics endpoint
• Graceful Kubernetes-style drain
• Last-Event-ID replay, Event TTL, backpressure handling
• Cache invalidation signals (Invalidate, DomainEvent, BatchDomainEvents)
• Zero external dependencies beyond Fiber v3
• MIT License, 39 tests, 42 benchmarks

Links

• GitHub: https://github.com/vinod-morya/fibersse
• Go Docs: https://pkg.go.dev/github.com/vinod-morya/fibersse
• Go Report: https://goreportcard.com/report/github.com/vinod-morya/fibersse
• npm (React SDK): https://www.npmjs.com/package/fibersse-react

[github-actions]

Automated Quality Checks

Required checks

✅ Repo: accessible, has go.mod and SemVer release
✅ pkg.go.dev: OK
✅ Go Report Card: OK (grade unknown)

Additional checks

✅ License: MIT
⚠️ Maturity: repo appears to have less than 5 months of history

How to fix: Your repository needs at least 5 months of history since the first commit.
Please resubmit after the repository meets this requirement.
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How to fix: Add a CI workflow to run tests automatically.
Create .github/workflows/test.yml — see https://docs.github.com/en/actions/use-cases-and-examples/building-and-testing/building-and-testing-go
✅ README: present
⚠️ Coverage: missing from PR body
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Popular options: [Codecov](https://codecov.io), [Coveralls](https://coveralls.io). Integrate one with your CI to track coverage automatically.


_These checks are automated and do not replace maintainer review. See [CONTRIBUTING.md](https://github.com/avelino/awesome-go/blob/main/CONTRIBUTING.md) for full guidelines._

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## PR Diff Validation

### Content checks

✅ **Files changed**: only README.md
✅ **Single item**: one package added
✅ **Link consistency**: README link matches forge link in PR body
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✅ **Description**: ends with punctuation
✅ **Description tone**: no promotional language detected
✅ **Category size**: Networking has 80 items


_Automated diff validation — does not replace maintainer review._
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