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/css-tree/lib/syntax/node/ClassSelector.js

@@ -0,0 +1,29 @@
+var TYPE = require('../../tokenizer').TYPE;
+
+var IDENT = TYPE.Ident;
+var FULLSTOP = 0x002E; // U+002E FULL STOP (.)
+
+// '.' ident
+module.exports = {
+    name: 'ClassSelector',
+    structure: {
+        name: String
+    },
+    parse: function() {
+        if (!this.scanner.isDelim(FULLSTOP)) {
+            this.error('Full stop is expected');
+        }
+
+        this.scanner.next();
+
+        return {
+            type: 'ClassSelector',
+            loc: this.getLocation(this.scanner.tokenStart - 1, this.scanner.tokenEnd),
+            name: this.consume(IDENT)
+        };
+    },
+    generate: function(node) {
+        this.chunk('.');
+        this.chunk(node.name);
+    }
+};