Retire the superseded Snapmaker PLA-CF preset for the U1 0.4 nozzle

"Snapmaker PLA-CF @U1" and "Snapmaker PLA-CF @U1 0.4 nozzle" are the same
product on the same printer: both pin "Snapmaker U1 (0.4 nozzle)", and only a
filament_id salt split kept them apart. The first came with the original U1
profiles (#10225); the second with the tool-changer rework (#15039), which
added the 0.4/0.6/0.8 nozzle variants and left the older preset behind.

Drop the older one and re-mint the 0.4 variant onto OFhQf8ou, the id its 0.6
and 0.8 siblings already carry, so the product holds one id across the three
nozzles; renamed_from redirects the retired name. Users of the retired preset
get the #15039 tuning - 39 keys differ, including nozzle 230 -> 240 C, plate
55 -> 65 C and vitrification 150 -> 45 C - which is what the 0.6 and 0.8
variants already ship.

"Snapmaker PLA-CF @U1 base" stays. #15039 orphaned it by having the nozzle
variants inherit fdm_filament_pla directly, so it is unreferenced, but it is a
base in the vendor's own convention - 10 of the 14 @U1 families with nozzle
variants wire them to one - and it holds U1 loading and cooling values the
variants never set. Wiring them to it would change slicing output, which is
Snapmaker's call to make, not this PR's.

Claude-Session: https://claude.ai/code/session_01Q3zm9HuyskkSb4hynviV99

resources/profiles/Snapmaker.json

@@ -1,6 +1,6 @@
 {
 	"name": "Snapmaker",
-	"version": "02.04.00.11",
+	"version": "02.04.00.12",
 	"force_update": "0",
 	"description": "Snapmaker configurations",
 	"machine_model_list": [
@@ -1572,10 +1572,6 @@
 			"name": "Snapmaker PLA Silk @0.2 nozzle",
 			"sub_path": "filament/Snapmaker PLA Silk @0.2 nozzle.json"
 		},
-		{
-			"name": "Snapmaker PLA-CF @U1",
-			"sub_path": "filament/Snapmaker PLA-CF @U1.json"
-		},
 		{
 			"name": "Snapmaker PLA-CF",
 			"sub_path": "filament/Snapmaker PLA-CF.json"

resources/profiles/Snapmaker/filament/Snapmaker PLA-CF @U1 0.4 nozzle.json

@@ -3,8 +3,9 @@
 	"name": "Snapmaker PLA-CF @U1 0.4 nozzle",
 	"inherits": "fdm_filament_pla",
 	"from": "system",
+	"renamed_from": "Snapmaker PLA-CF @U1",
 	"setting_id": "2INwruC3ZVkBTdUT",
-	"filament_id": "OFf52D4e",
+	"filament_id": "OFhQf8ou",
 	"instantiation": "true",
 	"compatible_printers": [
 		"Snapmaker U1 (0.4 nozzle)"

resources/profiles/Snapmaker/filament/Snapmaker PLA-CF @U1.json

@@ -1,14 +0,0 @@
-{
-	"type": "filament",
-	"name": "Snapmaker PLA-CF @U1",
-	"inherits": "Snapmaker PLA-CF @U1 base",
-	"from": "system",
-	"setting_id": "eyNYjz24xQYyAQcv",
-	"instantiation": "true",
-	"compatible_printers": [
-		"Snapmaker U1 (0.4 nozzle)"
-	],
-	"filament_retract_length_toolchange": [
-		"5"
-	]
-}

scripts/filament_id_snapshot.json

@@ -4970,14 +4970,6 @@
    "filament_type": "PETG",
    "filament_vendor": "QIDI"
   },
-  "OFf52D4e": {
-   "filaments": [
-    "Snapmaker/Snapmaker PLA-CF"
-   ],
-   "name": "Snapmaker PLA-CF",
-   "filament_type": "PLA-CF",
-   "filament_vendor": "Snapmaker"
-  },
   "OFf5awy4": {
    "filaments": [
     "OrcaFilamentLibrary/Eolas Prints PLA Matte"