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

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

node_modules/css-tree/lib/syntax/node/String.js

@@ -0,0 +1,18 @@
+var STRING = require('../../tokenizer').TYPE.String;
+
+module.exports = {
+    name: 'String',
+    structure: {
+        value: String
+    },
+    parse: function() {
+        return {
+            type: 'String',
+            loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
+            value: this.consume(STRING)
+        };
+    },
+    generate: function(node) {
+        this.chunk(node.value);
+    }
+};