Release 0.1.0: MIT license, changelog, multi-arch Docker image without CLI builds

- LICENSE (MIT), CHANGELOG for 0.1.0, README overhaul
- docker-compose.release.yml pulling the registry image
- Dockerfile cross-compiles the server with cargo-zigbuild for amd64 and arm64;
  the terminal client is no longer built into the image
- Server, install script and settings point to a source install of the
  terminal client when no prebuilt binaries are available (/info: cli_builds)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

server/Cargo.toml

@@ -3,6 +3,8 @@ name = "codecraft"
 version = "0.1.0"
 edition = "2024"
 description = "Web-based coding harness for AI models"
+license = "MIT"
+repository = "https://git.familie-zink.org/zink/codecraft"
 
 [dependencies]
 codecraft-core = { path = "../core" }

server/resources-cli/install.sh

@@ -16,7 +16,7 @@ case "$arch" in
 esac
 case "$os" in
   linux) ;;
-  *) echo "codecraft: no prebuilt binary for $os yet – build from source: cargo install --git <repo> codecraft-cli" >&2; exit 1 ;;
+  *) echo "codecraft: no prebuilt binary for $os yet – build from source: cargo install --locked --git https://git.familie-zink.org/zink/codecraft codecraft-cli" >&2; exit 1 ;;
 esac
 
 target="$os-$arch"
@@ -24,10 +24,16 @@ url="$SERVER/cli/download/$target"
 mkdir -p "$DIR"
 tmp="$DIR/.codecraft.download"
 echo "Downloading codecraft ($target) from $SERVER …"
+no_build() {
+  rm -f "$tmp"
+  echo "codecraft: this server has no prebuilt binary for $target." >&2
+  echo "Build it from source (needs Rust): cargo install --locked --git https://git.familie-zink.org/zink/codecraft codecraft-cli" >&2
+  exit 1
+}
 if command -v curl >/dev/null 2>&1; then
-  curl -fsSL "$url" -o "$tmp"
+  curl -fsSL "$url" -o "$tmp" || no_build
 elif command -v wget >/dev/null 2>&1; then
-  wget -q "$url" -O "$tmp"
+  wget -q "$url" -O "$tmp" || no_build
 else
   echo "codecraft: needs curl or wget" >&2; exit 1
 fi

server/src/api.rs

@@ -180,6 +180,13 @@ fn cli_dir() -> PathBuf {
     std::env::var("CODECRAFT_CLI_DIR").map(PathBuf::from).unwrap_or_else(|_| PathBuf::from("/app/cli"))
 }
 
+/// Whether this server ships prebuilt terminal client binaries (the release image does not).
+pub(crate) fn cli_builds_available() -> bool {
+    std::fs::read_dir(cli_dir()).map(|mut d| d.any(|e| e.is_ok_and(|e| e.file_name().to_string_lossy().starts_with("codecraft-")))).unwrap_or(false)
+}
+
+const CLI_SOURCE_HINT: &str = "build it from source: cargo install --locked --git https://git.familie-zink.org/zink/codecraft codecraft-cli";
+
 /// The server's public base URL (config, else from the request).
 fn public_base(app: &App, headers: &axum::http::HeaderMap) -> String {
     let cfg = app.config();
@@ -213,7 +220,7 @@ async fn cli_download(Path(target): Path<String>) -> Response {
             bytes,
         )
             .into_response(),
-        Err(_) => (StatusCode::NOT_FOUND, format!("no codecraft build for {target} on this server")).into_response(),
+        Err(_) => (StatusCode::NOT_FOUND, format!("no prebuilt codecraft for {target} on this server – {CLI_SOURCE_HINT}\n")).into_response(),
     }
 }
 

server/src/auth.rs

@@ -257,6 +257,7 @@ pub async fn info(State(app): State<Arc<App>>, headers: HeaderMap) -> Json<Value
         "commit": crate::update::commit(),
         "update": if user.as_ref().is_some_and(|u| u.is_admin()) { app.update.latest.lock().unwrap().clone() } else { None },
         "setup_required": app.setup_code.lock().unwrap().is_some(),
+        "cli_builds": crate::api::cli_builds_available(),
         "oidc": if cfg.auth.oidc.enabled { json!({"label": cfg.auth.oidc.button_label}) } else { Value::Null },
         "user": user,
     }))