feat(photo-editor): Ajax Image Editor client (Photoshop-parity tools)

Photoshop-parity editor client: layers, selection/masking, brushes,
smart filters, LUT import, Quick Edit, mobile gestures, workspaces,
batch operations, and the service-worker versioning (v978->v1006).

Source: vendor/photocraft (ad1cff44) photo-editor client files, merged
onto upstream/dev (a8c147b2). Conflict resolution documented in
pr_work/A_conflicts.md; editor files taken from vendor/photocraft
(upstream's editor is an earlier snapshot of the same feature).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_editor_actions_panel_js.py

@@ -0,0 +1,68 @@
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def read(rel):
+    return (ROOT / rel).read_text(encoding="utf-8")
+
+
+def test_actions_panel_module_shape():
+    src = read("static/js/editor/actions-panel.js")
+    for token in [
+        "export const ACTION_COMMANDS",
+        "export function createActionsPanel(",
+        "ge-panel-actions",
+        "localStorage",
+        "'ge-actions'",
+    ]:
+        assert token in src
+
+
+def test_actions_panel_supports_batch():
+    src = read("static/js/editor/actions-panel.js")
+    for token in [
+        "ge-actions-batch-row",
+        "ge-actions-batch-select",
+        "runOnAllLayers",
+        "getLayers",
+        "selectLayer",
+    ]:
+        assert token in src
+
+
+def test_gallery_wires_actions_batch():
+    src = read("static/js/galleryEditor.js")
+    for token in ["getLayers: () =>", "selectLayer: (id) =>"]:
+        assert token in src
+
+
+def test_gallery_wires_actions_panel():
+    src = read("static/js/galleryEditor.js")
+    for token in [
+        "from './editor/actions-panel.js'",
+        "createActionsPanel(",
+        "element: actionsPanel.element",
+    ]:
+        assert token in src
+
+
+def test_window_menu_exposes_actions():
+    src = read("static/js/editor/build/topbar.js")
+    assert 'data-window-action="actions"' in src
+
+
+def test_wire_extra_menus_dispatches_actions():
+    src = read("static/js/editor/wire-extra-menus.js")
+    assert "'actions'" in src
+
+
+def test_actions_panel_css_present():
+    src = read("static/css/13-image-editor.css")
+    for token in [".ge-actions-step", ".ge-actions-name", ".ge-action-remove", ".ge-actions-batch-row"]:
+        assert token in src
+
+
+def test_actions_panel_is_precached():
+    src = read("static/sw.js")
+    assert "/static/js/editor/actions-panel.js" in src