chore: checkpoint web Blender migration source, tools and docs

Accumulated uncommitted work: GHOST Web backend, WebGL/GPU web layer,
web workflow engine and protocol, tooling, docs and task records.
Large generated evidence, user-testing archives, build snapshots and
imported test assets remain untracked.

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

blender-5.2.0/scripts/modules/bpy_extras/anim_utils.py

@@ -284,6 +284,8 @@ def bake_action_iter(
         *,
         action,
         bake_options,
+        pose_bone_names=None,
+        depsgraph=None,
 ):
     """
     A coroutine that bakes action for a single object.
@@ -295,6 +297,8 @@ def bake_action_iter(
     :type action: :class:`bpy.types.Action` | None
     :param bake_options: Options for baking.
     :type bake_options: :class:`anim_utils.BakeOptions`
+    :param pose_bone_names: Optional explicit pose channel subset, independent of selection.
+    :param depsgraph: Optional caller's evaluated dependency graph for visual sampling.
     :return: an action or None
     :rtype: :class:`bpy.types.Action` | None
     """
@@ -384,11 +388,15 @@ def bake_action_iter(
                 # itself cannot be animated.
                 continue
 
+    bone_names = None if pose_bone_names is None else frozenset(pose_bone_names)
+
     def pose_frame_info(obj):
         matrix = {}
         bbones = {}
         custom_props = {}
         for name, pbone in obj.pose.bones.items():
+            if bone_names is not None and name not in bone_names:
+                continue
             if bake_options.do_visual_keying:
                 # Get the final transform of the bone in its own local space...
                 matrix[name] = obj.convert_space(
@@ -461,7 +469,8 @@ def bake_action_iter(
         if frame is None:
             break
         if bake_options.do_pose:
-            pose_info.append((frame, *pose_frame_info(obj)))
+            sample_obj = obj.evaluated_get(depsgraph) if depsgraph is not None else obj
+            pose_info.append((frame, *pose_frame_info(sample_obj)))
             armature_info.append((frame, armature_frame_info(obj)))
         if bake_options.do_object:
             obj_info.append((frame, *obj_frame_info(obj)))
@@ -521,6 +530,8 @@ def bake_action_iter(
             )
 
         for name, pbone in obj.pose.bones.items():
+            if bone_names is not None and name not in bone_names:
+                continue
             if bake_options.only_selected and not pbone.select:
                 continue