Add kontor-echo and kontor-fiber to kontor-pod

resolve #35

(cherry picked from commit 05e26e512da9c237adbb58510df2b490837cd836)

kontor-echo/Containerfile

@@ -0,0 +1,24 @@
+# ---------- Stage 1: Build ----------
+FROM docker.io/library/golang:1.25-alpine AS builder
+# Set the working directory
+WORKDIR /app
+# Ensure a portable, static-ish binary
+ENV CGO_ENABLED=0 GOOS=linux GOARCH=amd64
+# Copy and download dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+# Copy the source code
+COPY . .
+# Build the Go application (strip debug info for smaller size)
+RUN go build -trimpath -ldflags="-s -w" -o kontor cmd/kontor/main.go
+
+# ---------- Stage 2: Final ----------
+FROM alpine:latest
+# Set the working directory
+WORKDIR /app
+# Install runtime dependencies you actually need
+RUN apk add --no-cache ca-certificates tzdata curl
+# Copy the binary and set ownership
+COPY --from=builder /app/kontor /app/kontor
+# Set the entrypoint command
+ENTRYPOINT ["/app/kontor"]