fix: QR menu branding fields — display name, header image, empty-to-hide

- menu_display_name is now separate from the site's internal name (was
  incorrectly showing the sysadmin-only site name on the public menu).
- Header image now resolves against the cloud API origin instead of
  the menu-app's own origin, fixing the broken-image icon.
- Tagline/blurb/hours now genuinely hide when cleared: the sysadmin
  save handler was converting empty fields to null, which the PUT
  endpoint's exclude_none silently drops instead of clearing.
- Added a settable blurb (EN/GR) below the tagline, previously
  hardcoded ("Fresh seasonal plates, served with care.").
- Collapsed hours from two fields (EN/GR) to one — opening hours don't
  vary by language.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

cloud_backend/main.py

@@ -45,9 +45,13 @@ def _run_migrations():
         "ALTER TABLE sites ADD COLUMN menu_mode VARCHAR NOT NULL DEFAULT 'order'",
         "ALTER TABLE sites ADD COLUMN menu_tagline_en VARCHAR",
         "ALTER TABLE sites ADD COLUMN menu_tagline_gr VARCHAR",
-        "ALTER TABLE sites ADD COLUMN menu_hours_en VARCHAR",
-        "ALTER TABLE sites ADD COLUMN menu_hours_gr VARCHAR",
+        "ALTER TABLE sites ADD COLUMN menu_hours_en VARCHAR",  # superseded by menu_hours, kept for history
+        "ALTER TABLE sites ADD COLUMN menu_hours_gr VARCHAR",  # superseded by menu_hours, kept for history
         "ALTER TABLE sites ADD COLUMN menu_header_image_url VARCHAR",
+        "ALTER TABLE sites ADD COLUMN menu_display_name VARCHAR",
+        "ALTER TABLE sites ADD COLUMN menu_blurb_en VARCHAR",
+        "ALTER TABLE sites ADD COLUMN menu_blurb_gr VARCHAR",
+        "ALTER TABLE sites ADD COLUMN menu_hours VARCHAR",
     ]
     for sql in migrations:
         try:

cloud_backend/models/site.py

@@ -26,8 +26,10 @@ class Site(Base):
 
     # QR menu branding/config
     menu_mode = Column(String, nullable=False, default="order")  # "order" | "view_only"
+    menu_display_name = Column(String, nullable=True)
     menu_tagline_en = Column(String, nullable=True)
     menu_tagline_gr = Column(String, nullable=True)
-    menu_hours_en = Column(String, nullable=True)
-    menu_hours_gr = Column(String, nullable=True)
+    menu_blurb_en = Column(String, nullable=True)
+    menu_blurb_gr = Column(String, nullable=True)
+    menu_hours = Column(String, nullable=True)
     menu_header_image_url = Column(String, nullable=True)

cloud_backend/routers/menu.py

@@ -39,9 +39,10 @@ def get_menu(site_slug: str, db: Session = Depends(get_db)):
     data = json.loads(snapshot.snapshot_json)
     data["menu_mode"] = site.menu_mode
     data["restaurant"] = {
-        "name": site.name,
+        "name": site.menu_display_name,
         "tagline": {"en": site.menu_tagline_en, "gr": site.menu_tagline_gr},
-        "hours": {"en": site.menu_hours_en, "gr": site.menu_hours_gr},
+        "blurb": {"en": site.menu_blurb_en, "gr": site.menu_blurb_gr},
+        "hours": site.menu_hours,
         "headerImageUrl": site.menu_header_image_url,
     }
     return data

cloud_backend/schemas/site.py

@@ -16,10 +16,12 @@ class SiteUpdate(BaseModel):
     license_expires_at: datetime | None = None
     waiter_domain: str | None = None
     menu_mode: str | None = None
+    menu_display_name: str | None = None
     menu_tagline_en: str | None = None
     menu_tagline_gr: str | None = None
-    menu_hours_en: str | None = None
-    menu_hours_gr: str | None = None
+    menu_blurb_en: str | None = None
+    menu_blurb_gr: str | None = None
+    menu_hours: str | None = None
 
 
 class SiteOut(BaseModel):
@@ -38,10 +40,12 @@ class SiteOut(BaseModel):
     last_seen_local_ip: str | None
     waiter_domain: str | None
     menu_mode: str
+    menu_display_name: str | None
     menu_tagline_en: str | None
     menu_tagline_gr: str | None
-    menu_hours_en: str | None
-    menu_hours_gr: str | None
+    menu_blurb_en: str | None
+    menu_blurb_gr: str | None
+    menu_hours: str | None
     menu_header_image_url: str | None
 
     model_config = {"from_attributes": True}