feat: refine and finalize redesign

src/content.config.ts

@@ -2,7 +2,12 @@ import { defineCollection, z } from "astro:content";
 import { glob } from "astro/loaders";
 
 const spec = defineCollection({
-  loader: glob({ pattern: "**/*.md", base: "./src/content/spec" }),
+  loader: glob({
+    pattern: "**/*.md",
+    base: "./src/content/spec",
+    // Use filename (without extension) as ID to preserve version strings
+    generateId: ({ entry }) => entry.replace(/\.md$/, ""),
+  }),
   schema: z.object({
     title: z.string(),
     version: z.string(),