Fix bin/publish: copy docs.dist from project root

Fix bin/publish: use correct .env path for rspade_system
Fix bin/publish script: prevent grep exit code 1 from terminating script

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

node_modules/@babel/runtime/helpers/esm/classStaticPrivateFieldDestructureSet.js

@@ -0,0 +1,7 @@
+import classApplyDescriptorDestructureSet from "./classApplyDescriptorDestructureSet.js";
+import assertClassBrand from "./assertClassBrand.js";
+import classCheckPrivateStaticFieldDescriptor from "./classCheckPrivateStaticFieldDescriptor.js";
+function _classStaticPrivateFieldDestructureSet(t, r, s) {
+  return assertClassBrand(r, t), classCheckPrivateStaticFieldDescriptor(s, "set"), classApplyDescriptorDestructureSet(t, s);
+}
+export { _classStaticPrivateFieldDestructureSet as default };