Add project files

__init__.py

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+import bpy
+from mathutils import Euler
+
+def update_rotations(*args):
+    for ok, o in bpy.data.objects.items():
+        o.rotation_euler = Euler((0, 0, 0))
+
+def register():
+    for h in list(bpy.app.handlers.depsgraph_update_pre):
+        if h.__name__ == "update_rotations":
+            bpy.app.handlers.depsgraph_update_pre.remove(h)
+    bpy.app.handlers.depsgraph_update_pre.append(update_rotations)
+
+register()

blender_manifest.toml

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+schema_version = "1.0.0"
+
+id = "no_rotation"
+version = "0.0.1"
+name = "Disable Object Rotation"
+tagline = "This extension enforces a (0, 0, 0) euler rotation on all objects"
+maintainer = "ChaoticByte <contact@chaoticbyte.net>"
+type = "add-on"
+
+blender_version_min = "4.2.0"
+
+license = [
+  "SPDX:GPL-3.0-or-later",
+]