feat: make sprite generation the default behavior

Changed sprite generation from opt-in to opt-out across the codebase:

- bin/dropbox_scanner: --sprites flag now defaults to True
- openforge/data/scanner.py: ENABLE_SPRITE_THUMBNAILS defaults to True
- openforge/data/incremental.py: ENABLE_SPRITE_THUMBNAILS defaults to True
- openforge/data/io.py: use_sprites parameter defaults to True

Users can now use --no-sprites to generate legacy single thumbnails instead.

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

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

Author: devonjones

bin/dropbox_scanner

@@ -28,7 +28,7 @@ from openforge.data.scanner import clean_files, find_files, parse_files, print_f
 @click.option("--verbose/--no-verbose", default=False, help="Verbose output")
 @click.option("--upload/--no-upload", default=False, help="Upload files to R2")
 @click.option(
-    "--sprites/--no-sprites", default=False, help="Generate sprite sheet thumbnails"
+    "--sprites/--no-sprites", default=True, help="Generate sprite sheet thumbnails"
 )
 @click.option("--update", help="Update existing fixture file incrementally")
 @click.option("--dry-run", is_flag=True, help="Preview changes without writing files")

openforge/data/incremental.py

@@ -628,7 +628,7 @@ def _get_metadata(path, fn):
 
                     # Only create thumbnail if file has changed
                     if file_changed:
-                        use_sprites = config.get("ENABLE_SPRITE_THUMBNAILS", False)
+                        use_sprites = config.get("ENABLE_SPRITE_THUMBNAILS", True)
                         try:
                             thumbnail_image = create_and_upload_thumbnail(
                                 result["file_metadata"],

openforge/data/io.py

@@ -337,7 +337,7 @@ def create_and_upload_thumbnail(
     s3_key_cache: Set[str],
     config: Dict,
     verbose: bool = False,
-    use_sprites: bool = False,
+    use_sprites: bool = True,
 ) -> Dict:
     """Create and upload thumbnail or sprite sheet for an STL file.
 

openforge/data/scanner.py

@@ -494,7 +494,7 @@ def _get_metadata(path, fn):
             f["storage_address"] = f"{config['FILE_DOMAIN']}/{model_address}"
 
             # Generate and upload thumbnail (sprite or single based on config)
-            use_sprites = config.get("ENABLE_SPRITE_THUMBNAILS", False)
+            use_sprites = config.get("ENABLE_SPRITE_THUMBNAILS", True)
             try:
                 thumbnail_image = create_and_upload_thumbnail(
                     f, full_file, s3_client, s3_key_cache, config, verbose, use_sprites