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_options_bar_js.py

@@ -0,0 +1,42 @@
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+SRC = ROOT / "static/js/editor/build/options-bar.js"
+GALLERY = ROOT / "static/js/galleryEditor.js"
+CSS = ROOT / "static/css/13-image-editor.css"
+
+
+def test_options_bar_module_shape():
+    src = SRC.read_text(encoding="utf-8")
+    assert "export function buildOptionsBar" in src
+    assert "export function renderOptionsBar" in src
+    assert "export function syncOptionsBar" in src
+    # Delegates to the authoritative right-panel controls (no duplicate state).
+    for selector in (
+        ".ge-size-slider",
+        "#ge-brush-opacity",
+        "#ge-brush-flow",
+        "#ge-eraser-flow",
+        "#ge-clone-opacity",
+        "#ge-lasso-feather",
+        "#ge-wand-feather",
+        "#ge-gradient-type",
+        "#ge-gradient-opacity",
+    ):
+        assert selector in src, selector
+    # Selection modes reuse the existing wand-mode buttons rather than re-implementing.
+    assert "data-wand-mode=" in src
+
+
+def test_options_bar_is_hidden_on_phones():
+    css = CSS.read_text(encoding="utf-8")
+    assert ".ge-options-bar" in css
+    assert ".ge-options-empty .ge-options-sep" in css
+
+
+def test_gallery_wires_options_bar():
+    src = GALLERY.read_text(encoding="utf-8")
+    assert "buildOptionsBar as _buildOptionsBar" in src
+    assert "_buildOptionsBar()" in src
+    assert "_renderOptionsBar(optionsBar, state.tool)" in src