chore: update permalink configuration and content organization

Modified hugo.toml to use section in post front-matter for permalinks

Updated layouts/_default/single.html to handle posts without categories

Modified scripts/generate-content.js to organize content by category

Deleted content/_index.md and added new category directories

layouts/_default/no-category.html

@@ -0,0 +1,31 @@
+{{ define "main" }}
+<article class="post">
+  <header class="post-header">
+    <h1 class="post-title">{{ .Title }}</h1>
+    <div class="post-meta">
+      <time datetime="{{ .Date.Format "2006-01-02" }}">{{ .Date.Format "January 2, 2006" }}</time>
+      {{ if .Params.author }}
+        <span class="post-author">{{ .Params.author.name }}</span>
+      {{ end }}
+      <div class="post-categories">
+        <a href="/categories/general" class="category">General</a>
+      </div>
+    </div>
+    {{ if .Params.featured_image }}
+      <img src="{{ .Params.featured_image }}" alt="{{ .Title }}" class="featured-image">
+    {{ end }}
+  </header>
+
+  <div class="post-content">
+    {{ .Content }}
+  </div>
+
+  {{ if .Params.tags }}
+    <div class="post-tags">
+      {{ range .Params.tags }}
+        <a href="/tags/{{ .slug }}" class="tag">#{{ .name }}</a>
+      {{ end }}
+    </div>
+  {{ end }}
+</article>
+{{ end }}