v0.22.0 several enhancements and fixes for security, network, doc, test, packaging

.dockerignore

@@ -0,0 +1,21 @@
+# The builder needs the module and its sources only; local state and keys stay out.
+.git
+.github
+.idea
+.claude
+worktrees
+.worktrees
+bin
+build
+cert
+data
+dev
+log
+logs
+script
+test/run*
+**/node_modules
+*.log
+*.pass
+*.toml
+!config/*.toml