fix(build): use debian trixie for arm64 moltis deb compatibility

Author: serhiicherepanov

.docker/moltis/Dockerfile.stack

@@ -1,7 +1,9 @@
 # Combined Dockerfile for stack usage:
 # - 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
+# v0.10.3 arm64 .deb requires libc6 >= 2.39 (bookworm has 2.36).
+# Use trixie so both amd64/arm64 release debs install without manual libc overrides.
+FROM debian:trixie-slim
 
 ARG NODE_MAJOR=22
 ARG MOLTIS_VERSION=v0.10.3