Stage 0: Containerfile (musl-static, stdio-Entrypoint)

Containerfile

@@ -0,0 +1,19 @@
+# syntax=docker/dockerfile:1
+
+# ── Build-Stage: statisches musl-Binary ──
+# rust:alpine baut nativ gegen x86_64-unknown-linux-musl (kein Cross-Compile).
+FROM rust:alpine AS build
+RUN apk add --no-cache musl-dev
+WORKDIR /src
+COPY . .
+RUN cargo build --release --bin dtrack-stdio
+
+# ── Runtime-Stage: minimal ──
+FROM alpine:3.20
+RUN apk add --no-cache ca-certificates
+COPY --from=build /src/target/release/dtrack-stdio /usr/local/bin/dtrack-stdio
+
+# stdio-Transport: der Container wird vom MCP-Client (Claude Desktop) via
+# `docker run -i` / `podman run -i` gestartet -- KEIN langlebiger Dienst.
+# Config kommt zur Laufzeit ueber -e DTRACK_URL / -e DTRACK_API_KEY rein.
+ENTRYPOINT ["/usr/local/bin/dtrack-stdio"]