feat(common/protob): add optional uint32 refresh_index into DebugLinkRecordScreen message

Allows for screenshots from multiple emulator restarts being recorded in the same
directory without being overwritten by each other.
(As core/embed/unix/display-unix.c::display_save() starts with zero index after each restart.)

[no changelog]

common/protob/messages-debug.proto

@@ -68,7 +68,8 @@ message DebugLinkReseedRandom {
  * @next Success
  */
 message DebugLinkRecordScreen {
-    optional string target_directory = 1;  // empty or missing to stop recording
+    optional string target_directory = 1;           // empty or missing to stop recording
+    optional uint32 refresh_index = 2 [default=0];  // which index to give the screenshots (after emulator restarts)
 }
 
 /**

core/src/trezor/messages.py

@@ -2667,11 +2667,13 @@ if TYPE_CHECKING:
 
     class DebugLinkRecordScreen(protobuf.MessageType):
         target_directory: "str | None"
+        refresh_index: "int"
 
         def __init__(
             self,
             *,
             target_directory: "str | None" = None,
+            refresh_index: "int | None" = None,
         ) -> None:
             pass
 

python/src/trezorlib/messages.py

@@ -3773,14 +3773,17 @@ class DebugLinkRecordScreen(protobuf.MessageType):
     MESSAGE_WIRE_TYPE = 9003
     FIELDS = {
         1: protobuf.Field("target_directory", "string", repeated=False, required=False, default=None),
+        2: protobuf.Field("refresh_index", "uint32", repeated=False, required=False, default=0),
     }
 
     def __init__(
         self,
         *,
         target_directory: Optional["str"] = None,
+        refresh_index: Optional["int"] = 0,
     ) -> None:
         self.target_directory = target_directory
+        self.refresh_index = refresh_index
 
 
 class DebugLinkGetState(protobuf.MessageType):