fix: serve quartz with clean URL support and regenerate site

- Add serve.py to resolve clean Quartz URLs to .html files
- Regenerate Quartz site with correct baseUrl http://100.118.5.51:9120
- 196 HTML files emitted; all internal links now resolve

node_modules/underscore/cjs/negate.js

@@ -0,0 +1,8 @@
+// Returns a negated version of the passed-in predicate.
+function negate(predicate) {
+  return function() {
+    return !predicate.apply(this, arguments);
+  };
+}
+
+module.exports = negate;