feat: Implement upscale functionality with ONNX models

- Added upscale operator to handle image upscaling by 4x using AI models.
- Introduced new jobs for upscale processing in the server, including debug and standard upscale jobs.
- Created a new ONNX model handler for upscale operations, supporting tiled inference and resource management.
- Updated tests to cover new upscale functionality, including input validation and output verification.
- Added documentation for the upscale feature, detailing usage and model options.

src/anyimage/menu.py

@@ -7,8 +7,11 @@ class AnyImageImageMenu(bpy.types.Menu):
     bl_idname = "ANYIMAGE_MT_image_context"
     bl_label = "AnyImage"
 
-    def draw(self, _context):
-        from .properties import ai_setup_label, ai_status
+    def draw(self, context):
+        from .properties import (
+            ai_setup_label,
+            ai_status,
+        )
 
         layout = self.layout
         layout.operator_context = "INVOKE_DEFAULT"
@@ -27,11 +30,17 @@ class AnyImageImageMenu(bpy.types.Menu):
             text="Convert to Surface…",
             icon="MESH_GRID",
         )
+        layout.separator()
         layout.operator(
             "anyimage.remove_image_background",
             text="Remove Background",
             icon="IMAGE_ALPHA",
         )
+        layout.operator(
+            "anyimage.upscale_image",
+            text=upscale_menu_label(context),
+            icon="FULLSCREEN_ENTER",
+        )
         layout.separator()
         status = ai_status()
         if status["ready"]:
@@ -48,12 +57,24 @@ class AnyImageImageMenu(bpy.types.Menu):
             )
 
 
+def upscale_menu_label(context):
+    source_object = getattr(context, "object", None)
+    if not is_image_empty(source_object):
+        return "Upscale"
+    width, height = (
+        int(value) for value in getattr(source_object.data, "size", (0, 0))
+    )
+    if width <= 0 or height <= 0:
+        return "Upscale"
+    return f"Upscale ({width} × {height})"
+
+
 def draw_image_context_menu(self, context):
     if not is_image_empty(context.object):
         return
-    self.layout.separator()
     self.layout.menu(
         AnyImageImageMenu.bl_idname,
         text="AnyImage",
         icon="PLUGIN",
     )
+    self.layout.separator()