feat: hle_fallback on 39 emulator profiles (266 entries)

Batch analysis of all 273 profiles to identify HLE/embedded
fallbacks. Added hle_fallback: true where the core has verified
software replacement for missing BIOS files:

- Embedded ROMs: vice (102), ep128emu (22), fuse (18), frodo (4)
- HLE BIOS: bsnes* (33 across 3 profiles), puae (9 AROS),
  noods (4), melonds* (6 FreeBIOS), flycast (3 reios)
- Open-source replacements: sameboy (8), pokemini (1), gpsp (1)
- Built-in fallbacks: np2kai (7), atari800 (6 Altirra),
  picodrive (3), quasi88 (4), gambatte (2)

Conservative: only added where notes or source code confirm HLE.
Skipped 50+ profiles where files are optional alternatives, not
HLE replaceable (neocd, opera, kronos, pcem, etc.)

emulators/galaksija.yml

@@ -39,6 +39,7 @@ files:
     path: "galaksija/CHRGEN.BIN"
     size: 2048
     required: false
+    hle_fallback: true
     note: >
       Character generator ROM. Defines the 128-character bitmap font (8x13 pixels
       each). The core has this embedded compressed in rom.c and only loads the
@@ -49,6 +50,7 @@ files:
     path: "galaksija/ROM1.BIN"
     size: 4096
     required: false
+    hle_fallback: true
     note: >
       System ROM / BASIC interpreter. Mapped at 0x0000-0x0FFF. Contains the
       Galaksija BASIC language and boot routines. Embedded in rom.c as fallback.
@@ -58,6 +60,7 @@ files:
     path: "galaksija/ROM2.BIN"
     size: 4096
     required: false
+    hle_fallback: true
     note: >
       Math extension ROM. Mapped at 0x1000-0x1FFF. Adds floating-point math
       functions (SIN, COS, TG, SQR, LN, EXP, POW, etc). Optional even when