Add friendly names system for recipes, effects, and media

- Add friendly_names table with unique constraints per actor
- Create NamingService with HMAC-signed timestamp version IDs
- Version IDs use base32-crockford encoding, always increase alphabetically
- Name normalization: spaces/underscores to dashes, lowercase, strip special chars
- Format: "my-effect 01hw3x9k" (space separator ensures uniqueness)
- Integrate naming into recipe, effect, and media uploads
- Resolve friendly names to CIDs during DAG execution
- Update effects UI to display friendly names
- Add 30 tests covering normalization, parsing, and service structure

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/templates/effects/list.html

@@ -60,8 +60,12 @@
             </div>
             {% endif %}
 
-            <div class="mt-3 text-gray-600 text-xs font-mono truncate">
-                {{ effect.cid[:24] }}...
+            <div class="mt-3 text-xs">
+                {% if effect.friendly_name %}
+                <span class="text-blue-400 font-medium">{{ effect.friendly_name }}</span>
+                {% else %}
+                <span class="text-gray-600 font-mono truncate">{{ effect.cid[:24] }}...</span>
+                {% endif %}
             </div>
         </a>
         {% endfor %}