add dockerfile

backend/Dockerfile

@@ -1,4 +1,4 @@
-FROM rust:1.87-slim AS builder
+FROM rust:1.94-bookworm AS builder
 
 WORKDIR /build
 
@@ -7,12 +7,10 @@ RUN apt-get update && apt-get install -y pkg-config libssl-dev && rm -rf /var/li
 # Copy workspace manifests
 COPY Cargo.toml Cargo.lock ./
 
-# Copy only the crates needed for klog-backend
-COPY crates/ktracing/Cargo.toml crates/ktracing/Cargo.toml
-COPY crates/ktracing-subscriber/Cargo.toml crates/ktracing-subscriber/Cargo.toml
-COPY klog/backend/Cargo.toml klog/backend/Cargo.toml
-COPY klog/klog-cli/Cargo.toml klog/klog-cli/Cargo.toml
-COPY klog/types/Cargo.toml klog/types/Cargo.toml
+# Copy workspace member manifests
+COPY backend/Cargo.toml backend/Cargo.toml
+COPY types/Cargo.toml types/Cargo.toml
+COPY cli/Cargo.toml cli/Cargo.toml
 
 # Stub out every workspace member so Cargo can resolve the graph without full source
 RUN find . -name "Cargo.toml" -not -path "./Cargo.toml" | while read f; do \
@@ -26,14 +24,11 @@ RUN find . -name "Cargo.toml" -not -path "./Cargo.toml" | while read f; do \
 RUN cargo build --release -p klog-backend 2>/dev/null || true
 
 # Now copy real source
-COPY crates/ktracing/src crates/ktracing/src
-COPY crates/ktracing-subscriber/src crates/ktracing-subscriber/src
-COPY klog/backend/src klog/backend/src
-COPY klog/types/src klog/types/src
+COPY backend/src backend/src
+COPY types/src types/src
 
 # Touch to invalidate cached stubs
-RUN find klog/backend/src klog/types/src crates/ktracing/src crates/ktracing-subscriber/src \
-      -name "*.rs" -exec touch {} +
+RUN find backend/src types/src -name "*.rs" -exec touch {} +
 
 RUN cargo build --release -p klog-backend