add plugin files

WorkflowUIPlugin/__init__.py

@@ -0,0 +1,31 @@
+"""
+ComfyUI custom node: WorkflowUI plugin.
+
+Registers API routes so WorkflowUI (and other clients) can:
+- Delete files from ComfyUI output/input/temp (POST /delete, POST /workflowui/media/delete)
+- List and browse media (GET /workflowui/media/list, GET /workflowui/media/tree)
+- Detect plugin (GET /workflowui/media/capabilities)
+- Installed modules/versions for run metadata (GET /workflowui/version_info)
+
+No graph nodes are added; this is a route-only plugin.
+"""
+
+from .version_info import __version__
+from .routes import register_routes
+
+register_routes()
+
+# Startup banner
+_banner_text = f"  WorkflowUI Plugin v{__version__}  "
+_width = max(len(_banner_text) + 2, 24)
+_border = "+" + "-" * (_width - 2) + "+"
+print()
+print(_border)
+print("|" + _banner_text.center(_width - 2) + "|")
+print(_border)
+print()
+
+NODE_CLASS_MAPPINGS = {}
+NODE_DISPLAY_NAME_MAPPINGS = {}
+
+__all__ = ["NODE_CLASS_MAPPINGS", "NODE_DISPLAY_NAME_MAPPINGS"]