Basic Auth (Middlewares — P1)

[meshin-dev]

• What: Simple HTTP Basic authentication gate for internal endpoints, dev tooling, or proxy‑protected routes.
• Why Middlewares: Optional policy decision; encourage more robust auth in apps.
• Precedents: Gin BasicAuth; Echo Basic Auth; Chi BasicAuth. (https://gin-gonic.com/en/docs/examples/using-basicauth-middleware/, https://echo.labstack.com/docs/middleware/basic-auth, https://github.com/go-chi/chi/blob/master/middleware/basic_auth.go)