feat: resume fixes, OpenRouter templates, and project context

Delegate expected output filenames to modules so resume works for rembg
and composite; normalize G'MIC multi-frame output; add OpenRouter style
reference support with tests. Add Crusaders, orange, and team gallery
pipelines plus SOUL/AGENTS context files.

Co-authored-by: Cursor <cursoragent@cursor.com>

imagepipeline/modules/base.py

@@ -39,6 +39,16 @@ class BaseModule(ABC):
     def run(self, ctx: ModuleContext) -> None:
         """Process ctx.input_paths and write outputs into ctx.output_dir."""
 
+    @classmethod
+    def expected_output_filenames(
+        cls,
+        *,
+        matched_groups: list[list[Path]],
+        input_paths: list[Path],
+        params: dict[str, Any],
+    ) -> list[str]:
+        return [path.name for path in input_paths]
+
     def log_image(self, ctx: ModuleContext, index: int, total: int, path: Path) -> None:
         ctx.log_image(self.name, index, total, path)