fix: enable archive routing and dynamic volume numbering

content/editions/editions.json

@@ -0,0 +1,4 @@
+{
+  "layout": "edition",
+  "volume": 1
+}

eleventy.config.js

@@ -42,6 +42,10 @@ module.exports = function(eleventyConfig) {
       return roman;
     });
 
+    eleventyConfig.addCollection("editions", function(collectionApi) {
+      return collectionApi.getFilteredByGlob("content/editions/*/index.md");
+    });
+
     // 5. Directory configuration (integrated into the same function)
     return {
         dir: {