Add LocallyGrown series part 6 and implement series navigation

- Add final part of LocallyGrown.net series: "From Survival to Sustainability"
- Implement Hugo series taxonomy for better content organization
- Add series navigation partial showing all 6 parts with prev/next links
- Update all LocallyGrown posts with series metadata and ordering
- Display series indicators on index page for connected content
- Style series navigation with responsive design and dark mode support
- Fix series links across all posts to use correct slugs

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

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

layouts/_default/list.html

@@ -5,6 +5,14 @@
       {{ range where .Paginator.Pages "Type" "!=" "page" }}
         <li class="posts-list-item">
           <a class="posts-list-item-title" href="{{ .Permalink }}">{{ .Title }}</a>
+          {{ if .Params.series }}
+            {{ $series := index .Params.series 0 }}
+            {{ $order := .Params.series_order }}
+            <span class="series-indicator">
+              {{ partial "icon.html" (dict "ctx" $ "name" "book") }}
+              Part {{ $order }} of {{ $series }}
+            </span>
+          {{ end }}
           <span class="posts-list-item-description">
             <div>
               {{ if .Description }}

layouts/_default/single.html

@@ -0,0 +1,40 @@
+{{ define "main" }}
+  <article class="post">
+    <header class="post-header">
+      <h1 class ="post-title">{{ .Title }}</h1>
+      {{- if ne .Type "page" }}
+      <div class="post-meta">
+        <div>
+          {{ partial "icon.html" (dict "ctx" $ "name" "calendar") }}
+          {{ .PublishDate.Format "Jan 2, 2006" }}
+        </div>
+        <div>
+          {{ partial "icon.html" (dict "ctx" $ "name" "clock") }}
+          {{ .ReadingTime }} min read
+        </div>
+        {{- with .Params.tags }}
+        <div>
+          {{ partial "icon.html" (dict "ctx" $ "name" "tag") }}
+          {{- range . -}}
+            {{ with $.Site.GetPage (printf "/%s/%s" "tags" . ) }}
+              <a class="tag" href="{{ .RelPermalink }}">{{ .Title }}</a>
+            {{- end }}
+          {{- end }}
+        </div>
+        {{- end }}
+      </div>
+      {{- end }}
+    </header>
+
+    <div class="post-content">
+      {{ .Content }}
+    </div>
+
+    {{/* Series navigation at the bottom of the post */}}
+    {{ partial "series.html" . }}
+
+    <div class="post-footer">
+      {{ template "_internal/disqus.html" . }}
+    </div>
+  </article>
+{{ end }}

layouts/partials/series.html

@@ -0,0 +1,66 @@
+{{ with .Params.series }}
+  {{ $currentPage := $ }}
+  {{ $series := index . 0 }}
+  {{ $currentOrder := $.Params.series_order }}
+
+  {{/* Get all posts in this series */}}
+  {{ $seriesPosts := where $.Site.RegularPages "Params.series" "intersect" (slice $series) }}
+  {{ $seriesPosts = sort $seriesPosts "Params.series_order" }}
+  {{ $totalParts := len $seriesPosts }}
+
+  {{ if gt $totalParts 1 }}
+    <div class="series-box">
+      <div class="series-header">
+        <strong>{{ $series }}</strong>
+        <span class="series-part">Part {{ $currentOrder }} of {{ $totalParts }}</span>
+      </div>
+
+      <nav class="series-nav">
+        <ol class="series-list">
+          {{ range $seriesPosts }}
+            <li class="{{ if eq .RelPermalink $currentPage.RelPermalink }}current{{ end }}">
+              {{ if eq .RelPermalink $currentPage.RelPermalink }}
+                <strong>{{ .Title }}</strong>
+              {{ else }}
+                <a href="{{ .RelPermalink }}">{{ .Title }}</a>
+              {{ end }}
+            </li>
+          {{ end }}
+        </ol>
+      </nav>
+
+      <div class="series-navigation">
+        {{/* Previous post */}}
+        {{ $prevPost := "" }}
+        {{ $nextPost := "" }}
+        {{ $foundCurrent := false }}
+
+        {{ range $seriesPosts }}
+          {{ if $foundCurrent }}
+            {{ if not $nextPost }}
+              {{ $nextPost = . }}
+            {{ end }}
+          {{ else if eq .RelPermalink $currentPage.RelPermalink }}
+            {{ $foundCurrent = true }}
+          {{ else }}
+            {{ $prevPost = . }}
+          {{ end }}
+        {{ end }}
+
+        <div class="series-nav-links">
+          {{ with $prevPost }}
+            <a href="{{ .RelPermalink }}" class="series-prev">← Previous: {{ .Title }}</a>
+          {{ else }}
+            <span class="series-prev disabled">← Previous</span>
+          {{ end }}
+
+          {{ with $nextPost }}
+            <a href="{{ .RelPermalink }}" class="series-next">Next: {{ .Title }} →</a>
+          {{ else }}
+            <span class="series-next disabled">Next →</span>
+          {{ end }}
+        </div>
+      </div>
+    </div>
+  {{ end }}
+{{ end }}