chore: record what each platform installs

Each platform's own packages were read at the revision our data pins, for every emulator and core it ships: Batocera, Recalbox, RetroPie, ROCKNIX, Lakka, RetroDECK, RetroBat and EmuDeck. Files a package installs where the emulator reads them are recorded with installed_on, and files a release bundles but a package leaves out with not_bundled_on, so each platform's pack brings what its users lack and nothing they already have. The standalone profiles never checked before were held against their releases the same way. Batocera's imame4all is the mame2000 core. The primary neogeo.zip was a 7.7 KB placeholder no platform pins and no pack served: removed, the real dumps stay in .variants.

emulators/dolphin.yml

@@ -27,6 +27,7 @@ pack_structure:
 
 data_directories:
   - ref: dolphin-sys
+    installed_on: [batocera, lakka, retrobat, retrodeck]
     mode: libretro
     destination: "Sys"
     source_ref: "Source/Core/Common/CommonPaths.h:128-141"
@@ -197,9 +198,23 @@ files:
   # -- Gecko Code Handler --
   - name: "codehandler.bin"
     path: null
+    mode: standalone
     required: false
+    bundled: true
+    size: 2880
+    sha1: "e6c0050b3c67ee26198488fbbe4a5d019c15b628"
+    md5: "1f118b8735fcf40c20b38c3184eebfd9"
     hle_fallback: true
-    note: "Gecko/Ocarina cheat code handler. Shipped with Dolphin in Sys/, not user-supplied"
+    note: "Gecko/Ocarina cheat code handler. Shipped in Sys/ of the standalone release (dolphin-2512-x64.7z)"
+    source_ref: "Source/Core/Common/CommonPaths.h:155, Source/Core/Core/GeckoCode.cpp:120"
+
+  - name: "codehandler.bin"
+    path: null
+    mode: libretro
+    required: false
+    installed_on: [batocera, lakka, retrobat, retrodeck]
+    hle_fallback: true
+    note: "Gecko/Ocarina cheat code handler, read from the Sys data directory the core zip does not contain. The Batocera and Lakka packages copy Data/Sys beside the core, and RetroBat installs it as bios/dolphin-emu/Sys"
     source_ref: "Source/Core/Common/CommonPaths.h:155, Source/Core/Core/GeckoCode.cpp:120"
 
   # -- Wii System Menu (WAD) --