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/csso/lib/replace/String.js

@@ -0,0 +1,12 @@
+module.exports = function(node) {
+    var value = node.value;
+
+    // remove escaped newlines, i.e.
+    // .a { content: "foo\
+    // bar"}
+    // ->
+    // .a { content: "foobar" }
+    value = value.replace(/\\(\r\n|\r|\n|\f)/g, '');
+
+    node.value = value;
+};