feat: profile the retroarch frontend config reads

AmberELEC and ROCKNIX install a retroarch.cfg whose system_directory
points every core at the BIOS folder. retroarch.yml (type utility, no
file, no system) reads that key, and ROCKNIX's systemfiles_in_content_dir,
at the RetroArch each one compiles: v1.22.2 and bdba046f. all_libretro
never picks a utility profile, and lists naming retroarch gain no file.

A libretro core option a frontend record writes stays the core's to
read: RetroDECK's pcsx2_bios keeps lrps2 as its reader.

scripts/launchers.py

@@ -468,7 +468,12 @@ def config_evidence(
     readers: list[str] = []
     uncovered = list(keys)
     loaded = False
-    for key in _named_profiles(record, profiles, platform) or sorted(profiles):
+    named = _named_profiles(record, profiles, platform)
+    if file == CORE_OPTIONS:
+        # A core option is read by the core RetroArch runs, not by the
+        # frontend a record names (RetroDECK's retroarch component).
+        named = [k for k in named if "libretro" in str(profiles[k].get("type") or "")]
+    for key in named or sorted(profiles):
         profile = profiles[key]
         handles = _handle_refs(profile)
         for read in profile.get("config_reads") or []:
@@ -1319,7 +1324,10 @@ class LauncherLayer:
                 for key in self._profiles_named(emulator, profiles, relevant)
             }
             # RetroDECK names its frontend, retroarch, and the core option it
-            # writes, pcsx2_bios, names the core.
+            # writes, pcsx2_bios, names the core: a libretro core option
+            # belongs to a libretro core.
+            if place.build == "libretro" and place.kind == "core_option":
+                owners = {k for k in owners if "libretro" in str(profiles[k].get("type") or "")}
             if not owners:
                 owners = set(setting_readers(place.passes_to, profiles, relevant))
             for key in sorted(owners):