feat(photo-editor): NL editor planner, image ops, email/gallery server

Server-side photo editor: natural-language editor agent route
(/api/editor/agent), photo_editor tool family + style guide, image-op
provider proxy with progress, email server hardening, gallery/hwfit
routes, and graceful shutdown.

Source: vendor/photocraft (ad1cff44) editor-server files, merged onto
upstream/dev (a8c147b2). Conflict resolution documented in
pr_work/B_conflicts.md.

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

tests/test_gallery_image_model_picker.py

@@ -0,0 +1,27 @@
+"""Source checks for the gallery Settings-tab image-model picker.
+
+The Quick Edit model picker lives in the editor; HARNESS mirrors it into the
+gallery Settings tab, fed by GET /api/editor/image-models and sharing the
+same localStorage key (`ge-ai-command-model`) so the two stay in sync.
+"""
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[1]
+GALLERY_JS = (ROOT / "static/js/gallery.js").read_text(encoding="utf-8")
+
+
+def test_settings_tab_has_image_model_picker():
+    assert 'id="gallery-image-model"' in GALLERY_JS
+    assert "/api/editor/image-models" in GALLERY_JS
+    assert "ge-ai-command-model" in GALLERY_JS
+
+
+def test_image_model_picker_lives_in_the_settings_container():
+    settings_idx = GALLERY_JS.index('id="gallery-settings-container"')
+    picker_idx = GALLERY_JS.index('id="gallery-image-model"')
+    assert picker_idx > settings_idx
+
+
+def test_picker_persists_with_the_shared_localstorage_key():
+    assert "localStorage.setItem(_GE_MODEL_KEY" in GALLERY_JS
+    assert "localStorage.getItem(_GE_MODEL_KEY)" in GALLERY_JS