work: restore shift+spacebar for media play/pause

maybe put in maya config? idk what funiman's preference is

scripts/addons/flamenco/bat_v2/pack_fs.py

@@ -0,0 +1,39 @@
+# SPDX-FileCopyrightText: 2026 Blender Authors
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+"""BAT v2 packing to the filesystem."""
+
+from __future__ import annotations
+
+__all__ = ("pack_start",)
+
+from pathlib import Path
+from typing import Any, TypeAlias
+
+# Alias some types from blender_asset_tracer so that we can use type annotations
+# without having to import from BATv2.
+BATPackReporter: TypeAlias = Any
+BATPacker: TypeAlias = Any
+
+
+def pack_start(
+    project_root: Path,
+    reporter: BATPackReporter,
+    *,
+    use_relative_only: bool,
+    pack_target_dir: Path,
+    ignore_globs: set[str] = set(),
+) -> BATPacker:
+    """Investigate what's needed to create a BAT pack."""
+    from .submodules import file_usage, pack
+
+    batpacker = pack.BATPacker(
+        project_root,
+        file_usage.Options(
+            use_relative_only=use_relative_only,
+            ignore_globs=ignore_globs,
+        ),
+        reporter,
+        pack_target_dir=pack_target_dir,
+    )
+    return batpacker