billboard applets: drop billboard- prefix from partials & ids; Most Recent → Most Recent Scroll; room_scroll → scroll — TDD

- Slug renames (mig 0004): billboard-my-scrolls → my-scrolls; billboard-my-contacts → my-contacts; billboard-most-recent → most-recent-scroll (name → "Most Recent Scroll"); billboard-notes → notes
- Partial filenames lose the `billboard-` token to mirror dashboard/gameboard convention; element ids follow (id_applet_my_scrolls, id_applet_my_contacts, id_applet_most_recent_scroll, id_applet_notes, id_applet_scroll); .applet-billboard-scroll → .applet-scroll
- View fn billboard.views.room_scroll → scroll; template apps/billboard/room_scroll.html → scroll.html (URL name `billboard:scroll` already correct)
- ITs + FTs updated to new identifiers; SCSS selectors retitled

Code architected by Disco DeDisco <discodedisco@outlook.com>
Git commit message Co-Authored-By:
Claude Sonnet 4.6 <noreply@anthropic.com>

src/templates/apps/billboard/_partials/_applet-most-recent-scroll.html

@@ -1,9 +1,9 @@
 {% load lyric_extras %}
 <section
-    id="id_applet_billboard_most_recent"
+    id="id_applet_most_recent_scroll"
     style="--applet-cols: {{ entry.applet.grid_cols }}; --applet-rows: {{ entry.applet.grid_rows }};"
 >
-    <h2>Most Recent</h2>
+    <h2>Most Recent Scroll</h2>
     {% if recent_room %}
         <a href="{% url 'billboard:scroll' recent_room.id %}" class="most-recent-room-link">{{ recent_room.name }}</a>
         <section id="id_drama_scroll" class="drama-scroll">

src/templates/apps/billboard/_partials/_applet-my-contacts.html

@@ -1,5 +1,5 @@
 <section
-    id="id_applet_billboard_my_contacts"
+    id="id_applet_my_contacts"
     style="--applet-cols: {{ entry.applet.grid_cols }}; --applet-rows: {{ entry.applet.grid_rows }};"
 >
     <h2>Contacts</h2>

src/templates/apps/billboard/_partials/_applet-my-scrolls.html

@@ -1,5 +1,5 @@
 <section
-    id="id_applet_billboard_my_scrolls"
+    id="id_applet_my_scrolls"
     style="--applet-cols: {{ entry.applet.grid_cols }}; --applet-rows: {{ entry.applet.grid_rows }};"
 >
     <h2>My Scrolls</h2>

src/templates/apps/billboard/_partials/_applet-notes.html

@@ -1,5 +1,5 @@
 <section
-    id="id_applet_billboard_notes"
+    id="id_applet_notes"
     style="--applet-cols: {{ entry.applet.grid_cols }}; --applet-rows: {{ entry.applet.grid_rows }};"
 >
     <h2><a href="/billboard/my-notes/">My Notes</a></h2>

src/templates/apps/billboard/_partials/_applet-scroll.html

@@ -1,4 +1,4 @@
-<section id="id_applet_billboard_scroll" class="applet-billboard-scroll">
+<section id="id_applet_scroll" class="applet-scroll">
     <h2>{{ room.name }}</h2>
     {% include "core/_partials/_scroll.html" %}
 </section>

src/templates/apps/billboard/scroll.html

@@ -17,7 +17,7 @@
             </div>
         </form>
     </div>
-    {% include "apps/billboard/_partials/_applet-billboard-scroll.html" %}
+    {% include "apps/billboard/_partials/_applet-scroll.html" %}
 </div>
 <script>
 (function () {