Remove legacy ge-* image types (gea-only fleet)

Drop ge-standard/ge-engineer/ge-shopfloor-lockdown/ge-shopfloor-mce from image_types + standard_types, both startnet boot menus (choices + labels + net use), and the webapp IMAGE_TYPES/FRIENDLY_NAMES. Fleet is gea-* only; the empty ge-* winpeapps stub dirs were removed on the live share.

playbook/pxe_server_setup.yml

@@ -38,10 +38,6 @@
       - gea-standard
       - gea-engineer
       - gea-shopfloor
-      - ge-standard
-      - ge-engineer
-      - ge-shopfloor-lockdown
-      - ge-shopfloor-mce
     shopfloor_types:
       - gea-shopfloor
     # Image variants that share the generic Win10/Win11 unattend
@@ -50,8 +46,6 @@
     standard_types:
       - gea-standard
       - gea-engineer
-      - ge-standard
-      - ge-engineer
     deploy_subdirs:
       - Applications
       - Control