contract 0.18.0: one name per display role, the kiosk's own

Core called the roles dashboard / lobby / partskiosk. The kiosks call them
Dashboard / Lobby / 3DPrintRoom, which are the literal contents of
C:\Enrollment\display-type.txt, read by the GE-Enforce dispatcher to pick a
target. Two vocabularies for three kiosks, each with its own copy of the same
route map.

That is not cosmetic. A display reporting its own type sends what its file
says, so it could report a role core would not accept, and core could store
'partskiosk', a value no dispatcher would ever match. The enforcement report
column would have shown one vocabulary from the device and the other from the
DashboardDefault fallback, in the same column.

The machine's file wins, because that is what a person edits. DISPLAY_ROLE_PATHS
takes the kiosk spelling and the display scope now uses that dict rather than
holding a second one, so the two cannot drift again. normalize_display_role
resolves any casing and the retired 'partskiosk' forward; the dispatcher already
matched its map case-insensitively and the server now agrees with it.

Nothing is turned away over a capital: the API accepts any spelling and stores
the canonical one, displaypath resolves through the normalizer so rows written
before this keep working, and the settings dropdown canonicalises on open so an
old value does not render as a blank select.

A reported subtype is normalised on the way in, but an UNRECOGNISED one is kept
verbatim. That is a kiosk with a typo in its file or a role nobody declared, and
both are worth seeing in the fleet table rather than blanked or guessed at.

Contract bumped for the added names. DashboardDefault is finally listed in
__all__ too - 0.17.0 put it on the surface and never exported it.

shopdb/core/api/dashboarddefaults.py

@@ -9,7 +9,8 @@ from flask_jwt_extended import jwt_required
 
 from shopdb.extensions import db
 from shopdb.core.models import DashboardDefault, BusinessUnit, AuditLog
-from shopdb.core.models.dashboarddefault import DISPLAY_ROLES, DISPLAY_ROLE_PATHS
+from shopdb.core.models.dashboarddefault import (
+    DISPLAY_ROLES, DISPLAY_ROLE_PATHS, normalize_display_role)
 from shopdb.utils.responses import success_response, error_response, ErrorCodes
 from shopdb.utils.authz import require_role
 
@@ -117,17 +118,19 @@ def create_default():
     data = request.get_json() or {}
     fqdn = (data.get('fqdn') or '').strip().lower() or None
     ipaddress = (data.get('ipaddress') or '').strip() or None
-    role = (data.get('displayrole') or 'dashboard').strip()
+    # Accept any casing and the retired spellings, store the canonical one, so a
+    # caller matching the kiosk's own file is never turned away over a capital.
+    role = normalize_display_role(data.get('displayrole') or 'Dashboard')
     businessunitid = data.get('businessunitid')
 
     if not fqdn and not ipaddress:
         return error_response(ErrorCodes.VALIDATION_ERROR,
                               'fqdn or ipaddress is required')
-    if role not in DISPLAY_ROLES:
+    if not role:
         return error_response(ErrorCodes.VALIDATION_ERROR,
                               f'displayrole must be one of {", ".join(DISPLAY_ROLES)}')
-    # Only the dashboard role needs a business unit (location).
-    if role == 'dashboard':
+    # Only the Dashboard role needs a business unit (location).
+    if role == 'Dashboard':
         if not businessunitid:
             return error_response(ErrorCodes.VALIDATION_ERROR,
                                   'a location is required for the dashboard role')
@@ -167,8 +170,8 @@ def update_default(default_id):
 
     data = request.get_json() or {}
     if 'displayrole' in data:
-        role = (data.get('displayrole') or '').strip()
-        if role not in DISPLAY_ROLES:
+        role = normalize_display_role(data.get('displayrole'))
+        if not role:
             return error_response(ErrorCodes.VALIDATION_ERROR,
                                   f'displayrole must be one of {", ".join(DISPLAY_ROLES)}')
         default.displayrole = role
@@ -187,8 +190,8 @@ def update_default(default_id):
     if not default.fqdn and not default.ipaddress:
         return error_response(ErrorCodes.VALIDATION_ERROR,
                               'fqdn or ipaddress is required')
-    # Non-dashboard roles carry no location; dashboard needs one.
-    if default.displayrole != 'dashboard':
+    # Non-Dashboard roles carry no location; Dashboard needs one.
+    if normalize_display_role(default.displayrole) != 'Dashboard':
         default.businessunitid = None
     elif not default.businessunitid:
         return error_response(ErrorCodes.VALIDATION_ERROR,