kuma-glpi-bridge: webhook receiver opening GLPI incident tickets

Go service: Kuma webhook -> GLPI REST (two-step session) ticket per
monitor down-event, dedupe while open, recovery followup + solve on up.
Distroless image; CI = gofmt/vet/build/secret-scan.

Ticket: https://projects.knownelement.com/issues/824

Dockerfile

@@ -0,0 +1,10 @@
+FROM golang:1.23-alpine AS build
+WORKDIR /src
+COPY go.mod ./
+COPY cmd/ ./cmd/
+RUN go build -ldflags="-s -w" -o /out/bridge ./cmd/bridge
+FROM scratch
+COPY --from=build /out/bridge /bridge
+USER 65532:65532
+EXPOSE 8080
+ENTRYPOINT ["/bridge"]