feat: v1.2.0-rc.2 - Media display fixes and feed enhancements

## Added
- Feed Media Enhancement with Media RSS namespace support
  - RSS enclosure, media:content, media:thumbnail elements
  - JSON Feed image field for first image
- ADR-059: Full feed media standardization roadmap

## Fixed
- Media display on homepage (was only showing on note pages)
- Responsive image sizing with CSS constraints
- Caption display (now alt text only, not visible)
- Logging correlation ID crash in non-request contexts

## Documentation
- Feed media design documents and implementation reports
- Media display fixes design and validation reports
- Updated ROADMAP with v1.3.0/v1.4.0 media plans

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

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

templates/partials/media.html

@@ -0,0 +1,16 @@
+{# Reusable media display macro #}
+{% macro display_media(media_items) %}
+  {% if media_items %}
+  <div class="note-media">
+    {% for item in media_items %}
+    <figure class="media-item">
+      <img src="{{ url_for('public.media_file', path=item.path) }}"
+           alt="{{ item.caption or 'Image' }}"
+           class="u-photo"
+           loading="lazy">
+      {# No figcaption - caption is for alt text only #}
+    </figure>
+    {% endfor %}
+  </div>
+  {% endif %}
+{% endmacro %}