build(moltis): install release .deb assets for amd64/arm64

Author: serhiicherepanov

.docker/moltis/Dockerfile.stack

@@ -1,5 +1,5 @@
 # Combined Dockerfile for stack usage:
-# - Installs moltis binary from GitHub release assets (no local compilation)
+# - Installs moltis .deb from GitHub release assets (no local compilation)
 # - Adds Node.js, uv, and mcp-proxy used by this stack
 FROM debian:bookworm-slim
 
@@ -21,21 +21,17 @@ RUN apt-get update -qq && \
         gnupg \
         git \
         nodejs \
-        npm \
-        zstd && \
+        npm && \
     case "${TARGETARCH}" in \
-      amd64) MOLTIS_ARCH="x86_64" ;; \
-      arm64) MOLTIS_ARCH="aarch64" ;; \
+      amd64) DEB_ARCH="amd64" ;; \
+      arm64) DEB_ARCH="arm64" ;; \
       *) echo "Unsupported TARGETARCH: ${TARGETARCH}"; exit 1 ;; \
     esac && \
-    RELEASE_JSON="$(curl -fsSL "https://api.github.com/repos/moltis-org/moltis/releases/tags/${MOLTIS_VERSION}")" && \
-    ASSET_URL="$(printf '%s' "${RELEASE_JSON}" | grep -o "https://github.com/moltis-org/moltis/releases/download/${MOLTIS_VERSION}/moltis-[^\"]*-${MOLTIS_ARCH}\\.pkg\\.tar\\.zst" | head -n1)" && \
-    if [ -z "${ASSET_URL}" ]; then echo "Failed to resolve moltis asset URL for ${MOLTIS_VERSION}/${MOLTIS_ARCH}"; exit 1; fi && \
-    curl -fsSL "${ASSET_URL}" -o /tmp/moltis.pkg.tar.zst && \
-    mkdir -p /tmp/moltis-pkg && \
-    tar --use-compress-program=unzstd -xf /tmp/moltis.pkg.tar.zst -C /tmp/moltis-pkg && \
-    install -m 0755 /tmp/moltis-pkg/usr/bin/moltis /usr/local/bin/moltis && \
-    rm -rf /tmp/moltis.pkg.tar.zst /tmp/moltis-pkg && \
+    MOLTIS_VERSION_NO_V="${MOLTIS_VERSION#v}" && \
+    DEB_URL="https://github.com/moltis-org/moltis/releases/download/${MOLTIS_VERSION}/moltis_${MOLTIS_VERSION_NO_V}-1_${DEB_ARCH}.deb" && \
+    curl -fsSL "${DEB_URL}" -o /tmp/moltis.deb && \
+    apt-get install -yqq --no-install-recommends /tmp/moltis.deb && \
+    rm -f /tmp/moltis.deb && \
     curl -LsSf https://astral.sh/uv/install.sh | sh && \
     /root/.local/bin/uv tool install git+https://github.com/sparfenyuk/mcp-proxy && \
     ln -sf /root/.local/bin/uv /usr/local/bin/uv && \