Add and reorder BIOS path entries in the site generator (BizHawk, EmuDeck, RetroPie, RomM). Update the add-platform pipeline steps and CI workflow notes. Document verification behavior changes: FirmwareDatabase index now includes sha256; RomM uses MD5 verification (verify.py checks MD5 only); BizHawk uses SHA1; severity label for GREEN adjusted to WARNING. Clarify troubleshooting/verify output semantics (UNTESTED and mismatch reporting), add profiling fields (core_classification option and adler32), fix several path and link typos (RetroDECK path, README/CONTRIBUTING links), and other small docs polishing.
9 new wiki pages: getting-started, faq, troubleshooting,
advanced-usage, verification-modes, adding-a-platform,
adding-a-scraper, testing-guide, release-process.
Updated architecture.md with mermaid diagrams, tools.md with
full pipeline and target/exporter sections, profiling.md with
missing fields, index.md with glossary and nav links.
Expanded CONTRIBUTING.md from stub to full contributor guide.
Filter .old.yml from load_emulator_profiles, generate_db alias
collection, and generate_readme counts. Fix BizHawk sha1 mode
in tools.md, fix RetroPie path, fix export_truth.py typos.
