mir-backend-go-gin

Make It Right (Gin module). Gin web framework reliability augmentation for Go backends. Chains: mir-backend (generic gates) -> mir-backend-go (Go runtime) -> this (Gin library mechanics). Adds the mechanical footguns the runtime-agnostic tiers omit: *gin.Context is request-scoped and pooled, so it must be copied with c.Copy() before any spawned goroutine touches it; passing *gin.Context as a context.Context silently…