v2: automated BIOS platform with full pipeline

Reorganized 6 branches into bios/Manufacturer/Console/.
Scrapers for RetroArch, Batocera, Recalbox, and libretro core-info.
Platform-aware verification replicating native logic per platform.
Pack generation with dedup, alias resolution, variant support.
CI/CD: weekly auto-scrape, auto-release, PR validation.
Large files (>50MB) stored as GitHub Release assets, auto-fetched at build time.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,28 @@
+## Description
+
+<!-- Brief description of the changes -->
+
+## Type of Change
+
+- [ ] New BIOS file(s)
+- [ ] Updated BIOS file(s)
+- [ ] Platform configuration change
+- [ ] Script/automation improvement
+- [ ] Documentation update
+
+## BIOS Files (if applicable)
+
+| File | System | SHA1 | Source |
+|------|--------|------|--------|
+| <!-- filename --> | <!-- system --> | <!-- hash --> | <!-- where you got it --> |
+
+## Checklist
+
+- [ ] Files are placed in the correct `bios/Manufacturer/Console/` directory
+- [ ] File checksums match known databases (System.dat, batocera-systems, etc.)
+- [ ] No game ROMs or ISOs included (BIOS/firmware only)
+- [ ] No executable files included
+
+## Additional Context
+
+<!-- Any additional information about this contribution -->