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

scripts/verify.py

@@ -421,8 +421,9 @@ def print_platform_result(result: dict, group: list[str]) -> None:
         else:
             parts = [f"{ok_count}/{total} present"]
     else:
-        untested = c.get(Severity.WARNING, 0)
-        missing = c.get(Severity.CRITICAL, 0)
+        sc = result.get("status_counts", {})
+        untested = sc.get(Status.UNTESTED, 0)
+        missing = sc.get(Status.MISSING, 0)
         parts = [f"{ok_count}/{total} OK"]
         if untested:
             parts.append(f"{untested} untested")