fix: recording save functionality and authentication

- Fix artist_name null handling in header component with email fallback
- Fix authentication in recording endpoints to use req.accountability
- Change duration field type from integer to double precision for millisecond precision
- Add createRecording service function with proper authentication
- Update play page to use fetch API for recording saves

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

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

directus.yaml

@@ -2259,7 +2259,7 @@ fields:
       foreign_key_column: null
   - collection: sexy_recordings
     field: duration
-    type: integer
+    type: float
     meta:
       collection: sexy_recordings
       conditions: null
@@ -2282,11 +2282,11 @@ fields:
     schema:
       name: duration
       table: sexy_recordings
-      data_type: integer
+      data_type: double precision
       default_value: null
       max_length: null
-      numeric_precision: 32
-      numeric_scale: 0
+      numeric_precision: 53
+      numeric_scale: null
       is_nullable: false
       is_unique: false
       is_indexed: false