chore: add minimal Dockerfile for Glama.ai validation

Needed by Glama (and other MCP marketplaces that sandbox-run servers
for validation). The bundle in dist/index.js is self-contained, so the
container only needs node:20 — no install step, no package.json copy.

End users still install via `npx -y @roamzy/mcp-server` from npm; this
Dockerfile is for marketplace validators only.

Refs: punkpeye/awesome-mcp-servers#6733 (auto-bot listing requirements).

Author: artur-mamontov

Dockerfile

@@ -0,0 +1,30 @@
+# Minimal container for the @roamzy/mcp-server.
+#
+# Used by Glama.ai (and any other MCP marketplace that runs servers in a
+# sandbox) to validate that the server starts and responds to MCP
+# introspection requests (`tools/list`, `initialize`).
+#
+# The bundle in `dist/index.js` is self-contained — esbuild has inlined
+# every dependency, including the MCP SDK. So the container only needs
+# Node 20+; no `npm install` step, no package.json copy.
+#
+# End users still install via `npx -y @roamzy/mcp-server` (npm registry)
+# or the hosted tarball at https://roamzy.io/mcp/roamzy-mcp-latest.tgz.
+# This Dockerfile is for marketplace validators, not for end-user install.
+
+FROM node:20-bookworm-slim
+
+WORKDIR /app
+
+# The bundle is the ONLY file we need to run the server. It speaks stdio
+# (the MCP standard transport for locally-hosted servers), so no ports,
+# no environment scan beyond the documented ROAMZY_* vars.
+COPY dist/index.js /app/index.js
+
+RUN chmod +x /app/index.js
+
+# Anonymous-flow is the default — no env vars required. Marketplaces can
+# inject ROAMZY_API_TOKEN / ROAMZY_ENABLE_PURCHASE via env at runtime if
+# the user has configured them (see smithery.yaml `configSchema`).
+
+ENTRYPOINT ["node", "/app/index.js"]