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_mobile_qe_chrome.py

@@ -0,0 +1,74 @@
+"""Marker tests for the mobile Quick Edit / chrome fixes.
+
+While the Quick Edit card is open on a phone it owns the bottom of the canvas:
+the layers sheet is forced back to its peek height and the floating zoom/Setup
+footer is hidden. Also covers the tool-rail overflow glyph (a plain ellipsis,
+no separator bar) and the full-contrast "New Chat" header.
+"""
+
+from pathlib import Path
+import re
+
+ROOT = Path(__file__).resolve().parents[1]
+JS = (ROOT / "static/js/galleryEditor.js").read_text()
+CSS = (ROOT / "static/css/13-image-editor.css").read_text()
+SW = (ROOT / "static/sw.js").read_text()
+
+
+def test_qe_open_body_class_is_toggled():
+    assert "document.body.classList.toggle('ge-qe-open', !!open);" in JS
+
+
+def test_qe_open_forces_peek_and_hides_footer():
+    assert "body.ge-qe-open .ge-editor-footer.ge-footer-floating {" in CSS
+    assert "body.ge-qe-open .ge-right-panel:not(.minimized) {" in CSS
+    idx = CSS.index("body.ge-qe-open .ge-editor-footer.ge-footer-floating {")
+    assert "display: none !important;" in CSS[idx:idx + 160]
+
+
+def test_chat_meta_is_hidden_in_editor():
+    assert "body.ge-editor-open .chat-meta-overlay {" in CSS
+    idx = CSS.index("body.ge-editor-open .chat-meta-overlay {")
+    assert "display: none !important;" in CSS[idx:idx + 120]
+
+
+def test_tool_rail_more_has_no_separator_bar():
+    lines = CSS.splitlines()
+    i = lines.index("  .ge-tool-more {")
+    block = "\n".join(lines[i:i + 22])
+    assert "background: transparent;" in block
+    assert "border-left: 1px solid var(--border, #2a313c);" not in block
+
+
+def test_dropdown_menus_are_capped_to_the_viewport():
+    assert ".ge-filter-menu," in CSS
+    idx = CSS.index("max-height: min(560px, 70vh) !important;")
+    assert "overflow-y: auto" in CSS[idx:idx + 80]
+
+
+def test_menu_scroll_thumb_is_present():
+    assert ".ge-menu-thumb {" in CSS
+    assert "ge-menu-thumb" in JS
+
+
+def test_dropdown_scrollbar_is_visible():
+    assert ".ge-filter-menu::-webkit-scrollbar," in CSS
+    assert ".ge-filter-menu::-webkit-scrollbar-thumb," in CSS
+
+
+def test_long_dropdowns_are_capped():
+    assert "max-height: min(560px, 70vh) !important;" in CSS
+    assert "overscroll-behavior: contain;" in CSS
+    assert ".ge-filter-menu," in CSS
+
+
+def test_menu_scroll_thumb_exists():
+    assert ".ge-menu-thumb {" in CSS
+    assert "ge-menu-thumb" in JS
+    assert "wireMenuThumb" in JS
+
+
+def test_sw_version_is_current():
+    m = re.search(r"const CACHE_NAME = '([^']+)'", SW)
+    assert m, "CACHE_NAME not found"
+    assert re.fullmatch(r"odysseus-v\d+-pr40-editor-precache", m.group(1)), m.group(1)