feat: add misterfpga platform support

platforms/_registry.yml

@@ -1708,42 +1708,23 @@ platforms:
     config: misterfpga.yml
     status: active
     logo: https://avatars.githubusercontent.com/u/47264183
-    scraper: null
+    scraper: misterfpga
     source_url: https://raw.githubusercontent.com/ajgowans/BiosDB_MiSTer/db/bios_db.json.zip
-    source_format: json_zip
+    source_format: mister_downloader_db
     hash_type: md5
-    verification_mode: md5
-    base_destination: games
-    case_insensitive_fs: false
     schedule: weekly
-    cores: all_mister
+    cores: []
     target_scraper: null
-    target_source: https://github.com/MiSTer-devel/Distribution_MiSTer
+    target_source: null
     contributed_by:
-      - username: Takiiiiiii
-        contribution: platform support
-        pr: TBD
+    - username: Takiiiiiii
+      contribution: platform support
+      pr: 50
     install:
       detect:
-      # Running on MiSTer FPGA hardware itself (Linux-based, SD card mounted at /media/fat)
+      # Main_MiSTer mounts the SD card at /media/fat (file_io.cpp:1150-1156)
+      # and reads game data from GAMES_DIR (file_io.h:168)
       - os: linux
         method: path_exists
         path: /media/fat/MiSTer
         bios_path: /media/fat/games
-      # Host PC with SD card mounted at a common location — scan for the MiSTer binary signature
-      - os: linux
-        method: path_glob
-        patterns:
-          - /media/*/MiSTer_Data/MiSTer
-          - /media/*/*/MiSTer
-        bios_path_template: '{dirname}/games'
-      - os: macos
-        method: path_glob
-        patterns:
-          - /Volumes/*/MiSTer
-        bios_path_template: '{dirname}/games'
-      - os: windows
-        method: path_glob
-        patterns:
-          - '?:\MiSTer'
-        bios_path_template: '{dirname}\games'