Add Awasen Oe as co-author on bandwidth delusion article

Change primary journalist to Awasen Oe with Sophia Nakamura as
collaborator. Add journalist_collab field support to article template
with tooltip and "&" separator between co-authors.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: AnarchySC

content/posts/the-bandwidth-delusion.md

@@ -4,8 +4,9 @@ draft: false
 featured_image: /images/header-the-bandwidth-delusion.png
 image_prompt: Anime-style illustration of a vast library-observatory hybrid, holographic waveforms of different languages floating through the air in different colors, a lone xenolinguist studying data on glowing screens, cassette futurism aesthetic, warm lighting, minimal white background
 issue_number: '2935.055'
-journalist: ソフィア 中村
-journalist_title: Human Interest & Lifestyle Editor
+journalist: アワセン・オエ
+journalist_title: Opinion Columnist
+journalist_collab: ソフィア 中村
 title: 'The Bandwidth Delusion: Why Fast Talkers Don''t Build Better Starships'
 title_jp: 帯域幅の妄想：なぜ早口の種族が優れた宇宙船を造れないのか
 subtitle_jp: 銀河異星言語学局の画期的な研究が、言語・自由・革新の関係について通説を覆す

themes/filmoru/layouts/_default/single.html

@@ -28,6 +28,26 @@ <h1 class="article-hero__title">{{ . }}</h1>
           <span><span class="article-hero__author">{{ $name }}</span></span>
         {{ end }}
       {{ end }}
+      {{ with .Params.journalist_collab }}
+        {{ $name := . }}
+        {{ $found := false }}
+        <span class="collab-sep">&</span>
+        {{ range $.Site.Data.journalists.journalists }}
+          {{ if eq .name.display $name }}
+            {{ $found = true }}
+            <span class="author-tip-wrap">
+              <span class="article-hero__author">{{ $name }}</span>
+              <span class="author-tip">
+                <span class="author-tip__name">{{ .name.romanji }}</span>
+                <a href="/staff/#{{ .id }}" class="author-tip__link">Staff Profile →</a>
+              </span>
+            </span>
+          {{ end }}
+        {{ end }}
+        {{ if not $found }}
+          <span><span class="article-hero__author">{{ $name }}</span></span>
+        {{ end }}
+      {{ end }}
       <span class="edition-stamp">
         <span class="edition-stamp__number">{{ .Params.year | default "2935" }}.{{ .Date.YearDay | printf "%03d" }}</span>
       </span>
@@ -258,6 +278,12 @@ <h1 class="article-hero__title">{{ . }}</h1>
   text-decoration: underline;
 }
 
+.collab-sep {
+  color: var(--text-light);
+  font-size: 0.8rem;
+  margin: 0 -4px;
+}
+
 @media (max-width: 600px) {
   .article-hero__title {
     font-size: 2rem;