feat: 4-source verified emulator profiles (A-E cores)

33 emulator profiles created or updated with systematic
verification against libretro docs, .info, core source,
and original emulator source code.

New profiles: bsnes-jg, bsnes2014, bsnes_cplusplus98,
bsnes_hd_beta, bsnes_mercury, citra2018, citra_canary.

Key fixes:
- dosbox_svn/svn_ce: not aliases of dosbox_core (no MUNT)
- beetle_psx: alt_names renamed to aliases (field bug)
- dolphin: added 15 Realtek BT firmware for Wiimote passthrough
- dosbox_core: added CM-32LN, 13 split ROM pairs for standalone
- duckstation: type standalone+libretro, 106 BIOS verified
- snes9x/np2kai: formal aliases for alternate filenames

emulators/beetle_psx.yml

@@ -26,7 +26,7 @@ files:
     sha1: "b05def971d8ec59f346f2d9ac21fb742e3eb6917"
     md5: "8dd7d5296a650fac7319bce665a6a53c"
     source_ref: "libretro.cpp:252-256"
-    alt_names: ["SCPH5500.bin", "SCPH-5500.bin"]
+    aliases: ["SCPH5500.bin", "SCPH-5500.bin"]
 
   # -- Region: North America (REGION_NA) --
 
@@ -37,7 +37,7 @@ files:
     sha1: "0555c6fae8906f3f09baf5988f00e55f88e9f30b"
     md5: "490f666e1afb15b7362b406ed1cea246"
     source_ref: "libretro.cpp:258-270"
-    alt_names:
+    aliases:
       - "SCPH5501.bin"
       - "SCPH-5501.bin"
       - "scph5503.bin"
@@ -56,7 +56,7 @@ files:
     sha1: "f6bc2d1f5eb6593de7d089c425ac681d6fffd3f0"
     md5: "32736f17079d0b2b7024407c39bd3050"
     source_ref: "libretro.cpp:272-282"
-    alt_names:
+    aliases:
       - "SCPH5502.bin"
       - "SCPH-5502.bin"
       - "scph5552.bin"
@@ -72,7 +72,7 @@ files:
     sha1: "96880d1ca92a016ff054be5159bb06fe03cb4e14"
     md5: "c53ca5908936d412331790f4426c6c33"
     source_ref: "libretro.cpp:190-196"
-    alt_names: ["PSXONPSP660.bin"]
+    aliases: ["PSXONPSP660.bin"]
     notes: "override_bios=1 (psxonpsp option). Falls back to region BIOS if not found."
 
   - name: "ps1_rom.bin"
@@ -82,5 +82,5 @@ files:
     sha1: "c40146361eb8cf670b19fdc9759190257803cab7"
     md5: "81bbe60ba7a3d1cea1d48c14cbcc647b"
     source_ref: "libretro.cpp:198-204"
-    alt_names: ["PS1_ROM.bin"]
+    aliases: ["PS1_ROM.bin"]
     notes: "override_bios=2 (ps1_rom option). Falls back to region BIOS if not found."