feat: re-profile 22 emulators, refactor validation to common.py

batch re-profiled nekop2 through pokemini. mupen64plus renamed to
mupen64plus_next. new profiles: nes, mupen64plus_next.
validation functions (_build_validation_index, check_file_validation)
consolidated in common.py — single source of truth for verify.py
and generate_pack.py. pipeline 100% consistent on all 6 platforms.

emulators/pcsx_rearmed.yml

@@ -1,13 +1,13 @@
 emulator: PCSX-ReARMed
 type: libretro
+core_classification: embedded_hle
 source: "https://github.com/libretro/pcsx_rearmed"
-profiled_date: "2026-03-18"
-core_version: "r24"
+upstream: "https://github.com/notaz/pcsx_rearmed"
+profiled_date: "2026-03-24"
+core_version: "r25"
 display_name: "Sony - PlayStation (PCSX ReARMed)"
 cores: [pcsx_rearmed, pcsx_rearmed_neon, pcsx_rearmed_interpreter]
 systems: [sony-playstation]
-bios_size: 524288  # 512 KB (0x80000); also accepts 4 MB psxonpsp combo (reads first 512 KB)
-verification: crc32
 notes: >
   HLE BIOS built-in: core option pcsx_rearmed_bios = "HLE" bypasses real BIOS entirely.
   Default is "auto" which searches system dir for listed filenames, then scans all files.
@@ -17,7 +17,6 @@ notes: >
   Files named "unirom" (case-insensitive) are explicitly skipped.
   Region fallback: if the matching-region BIOS is missing, any available region BIOS is used over HLE.
   Three region slots: US (index 0), JP (index 1), EU (index 2) stored in Config.Bios[].
-  All firmware is optional per libretro-core-info; HLE works but real BIOS improves compatibility.
 
 files:
   # -- Region: Japan (PSX_REGION_JP = 1) --
@@ -25,10 +24,11 @@ files:
   - name: "scph5500.bin"
     description: "SCPH-5500 (v3.0 09-09-96 J)"
     region: "NTSC-J"
+    size: 524288
     required: false
     hle_fallback: true
-    md5: "8dd7d5296a650fac7319bce665a6a53c"
-    source_ref: "frontend/libretro.c:3710 (listed_bios[0])"
+    validation: [size]
+    source_ref: "frontend/libretro.c:3721-3724 (listed_bios[0])"
     notes: "Preferred JP BIOS, searched first by exact filename."
 
   # -- Region: North America (PSX_REGION_US = 0) --
@@ -36,10 +36,11 @@ files:
   - name: "scph5501.bin"
     description: "SCPH-5501 (v3.0 11-18-96 A)"
     region: "NTSC-U"
+    size: 524288
     required: false
     hle_fallback: true
-    md5: "490f666e1afb15b7362b406ed1cea246"
-    source_ref: "frontend/libretro.c:3710 (listed_bios[1])"
+    validation: [size]
+    source_ref: "frontend/libretro.c:3721-3724 (listed_bios[1])"
     notes: "Preferred US BIOS, searched first by exact filename."
 
   # -- Region: Europe (PSX_REGION_EU = 2) --
@@ -47,48 +48,52 @@ files:
   - name: "scph5502.bin"
     description: "SCPH-5502 (v3.0 01-06-97 E)"
     region: "PAL"
+    size: 524288
     required: false
     hle_fallback: true
-    md5: "32736f17079d0b2b7024407c39bd3050"
-    source_ref: "frontend/libretro.c:3710 (listed_bios[2])"
+    validation: [size]
+    source_ref: "frontend/libretro.c:3721-3724 (listed_bios[2])"
     notes: "Preferred EU BIOS, searched first by exact filename."
 
   # -- Fallback BIOS filenames (searched in order after scph550x) --
 
   - name: "psxonpsp660.bin"
-    description: "PSP embedded PS1 BIOS (region-free, 512 KB or 4 MB accepted)"
+    description: "PSP embedded PS1 BIOS (region detected at runtime)"
     region: "Auto"
+    size: 524288
     required: false
     hle_fallback: true
-    md5: "c53ca5908936d412331790f4426c6c33"
-    source_ref: "frontend/libretro.c:3711 (listed_bios[3])"
-    notes: "Region detected from content at runtime. 4 MB combo image accepted but only first 512 KB read."
+    validation: [size]
+    source_ref: "frontend/libretro.c:3721-3724 (listed_bios[3])"
+    notes: "Region detected from content at runtime. Must be 512 KB in libretro context."
 
   - name: "scph101.bin"
     description: "SCPH-101 (v4.4 03-24-00 A) - PSone US"
     region: "NTSC-U"
+    size: 524288
     required: false
     hle_fallback: true
-    md5: "6e3735ff4c7dc899ee98981c18c3666d"
-    source_ref: "frontend/libretro.c:3711 (listed_bios[4])"
-    notes: "PSone slim model. Searched by filename after scph550x and psxonpsp660."
+    validation: [size]
+    source_ref: "frontend/libretro.c:3721-3724 (listed_bios[4])"
+    notes: "PSone slim model."
 
   - name: "scph7001.bin"
     description: "SCPH-7001 (v4.1 12-16-97 A)"
     region: "NTSC-U"
+    size: 524288
     required: false
     hle_fallback: true
-    md5: "1e68c231d0896b7eadcad1d7d8e76129"
-    source_ref: "frontend/libretro.c:3711 (listed_bios[5])"
-    notes: "Searched by filename after psxonpsp660 and scph101."
+    validation: [size]
+    source_ref: "frontend/libretro.c:3721-3724 (listed_bios[5])"
 
   - name: "scph1001.bin"
     description: "SCPH-1001 (v2.2 12-04-95 A)"
     region: "NTSC-U"
+    size: 524288
     required: false
     hle_fallback: true
-    md5: "924e392ed05558ffdb115408c263dccf"
-    source_ref: "frontend/libretro.c:3711 (listed_bios[6])"
+    validation: [size]
+    source_ref: "frontend/libretro.c:3721-3724 (listed_bios[6])"
     notes: "Original US model. Last in the explicit filename search list."
 
   # -- Dynamic scan fallback --