fix: round 2 audit fixes, updated emulator profiles

Scripts:
- fix generate_site nav regex destroying mkdocs.yml content
- fix auto_fetch comma-separated MD5 in find_missing
- fix verify print_platform_result conflating untested/missing
- fix validate_pr path traversal and symlink check
- fix batocera_scraper brace counting and escaped quotes in strings
- fix emudeck_scraper hash search crossing function boundaries
- fix pipeline.py cwd to repo root via Path(__file__)
- normalize SHA1 comparison to lowercase in generate_pack

Emulator profiles:
- emux_gb/nes/sms: reclassify from alias to standalone profiles
- ep128emu: remove .info-only files not referenced in source
- fbalpha2012 variants: full source-verified profiles
- fbneo_cps12: add new profile

emulators/fbneo_cps12.yml

@@ -0,0 +1,38 @@
+emulator: "FinalBurn Neo (CPS-1/CPS-2)"
+type: pure_libretro
+source: "https://github.com/libretro/FBNeo"
+upstream: "https://neo-source.com"
+profiled_date: "2026-03-19"
+core_version: "v1.0.0.03"
+display_name: "Arcade (FinalBurn Neo) (CPS-1 / CPS-2)"
+cores:
+  - fbneo_cps12
+systems:
+  - cps1
+  - cps2
+
+notes: |
+  CPS-1/CPS-2 subset of FinalBurn Neo, current codebase (not frozen).
+  Exists for platforms that cannot run the full FBNeo core.
+
+  CPS-1 and CPS-2 have no system BIOS. Each game ROM set is self-contained:
+  68000 program + Z80 sound + GFX + QSound samples (CPS-2).
+
+  Zero BRF_BIOS entries in d_cps1.cpp and d_cps2.cpp. QSound emulated in
+  software (qs_c.cpp:QscInit, panning table). No DSP ROM needed.
+
+  Board PLDs (buf1, ioa1, prg1/prg2, rom1, sou1) are BRF_OPT — GAL/PAL
+  dumps for hardware preservation, never loaded by the emulator.
+
+  The .info lists firmware_count=1 but it's only hiscore.dat (optional,
+  high score database in system/fbneo/). Not a BIOS.
+
+  ROM path: game ZIPs loaded from content directory.
+  system/fbneo/ used only for optional extras: hiscore.dat, samples,
+  cheats, blend files, IPS patches.
+
+  need_fullpath=false, extensions=zip|7z, savestate=deterministic.
+
+files: []
+
+exclusion_note: "CPS-1/CPS-2 arcade hardware has no system BIOS. QSound DSP emulated in software. hiscore.dat is optional high score support, not firmware."