Add native Brave Origin and embed distro SVG logos

[TheLinuxITGuy]

What changed

• Added a Browsers catalog row for Brave Origin as a native app (brave-origin package, brave-origin exec, empty Flatpak ID).
• Kept the existing Brave Browser Flatpak row (com.brave.Browser).
• App tiles and distro chips are compiled into the binary. The running app does not need assets/ on disk.

Branding, MIT license, eframe 0.34.1, identifier validation, and argv-style helper commands are unchanged.

How Brave Origin is installed and verified

Install is not Flatpak and not curl | sh.

1. Toolbox GUI still collects the sudo password and caches it with sudo -S -v.
2. main.sh downloads only:
   • https://dl.brave.com/install.sh
   • https://dl.brave.com/install.sh.asc
3. The signature is checked in an isolated GNUPGHOME against the vendored key assets/keys/brave-install.sh.asc.
4. Verification fails closed unless GnuPG reports VALIDSIG for fingerprint D16166072CACDF2C9429CBF11BF41E37D039F691.
5. The downloaded file is then executed with FLAVOR=origin (no eval, no pipe-to-shell).
6. Nested sudo from Brave’s installer is wrapped as sudo -n so it uses the cached ticket and cannot hang on a nested interactive prompt.

Remove uses the existing native-remove path. On Arch the AUR package name is brave-origin-bin; Debian/Fedora use brave-origin.

Official docs: https://brave.com/origin/linux/

How logos are embedded

src/logos.rs compiles:

• Brave Origin: Chris’s assets/logos/brave-origin.svg via include_str! (white outlined lion on a dark tile). This is not the orange Brave Browser mark and not the generated Nala lion.
• Other app tiles: Chris’s original PNGs in assets/logos/*.png via include_bytes!. Brave Browser uses brave.png (orange).
• Distros: assets/distros/{arch,debian,fedora}.svg via include_str!.

htop, LibreOffice, and mpv have no tile file and use the letter fallback. Fonts and assets/keys/brave-install.sh.asc stay.

Unused cleanup

Removed from the tree:

• assets/icons/ — tiles now live under assets/logos/
• VMware Player Fix/ — standalone/unwired helper, not in the UI allowlist
• Extra Screenshot/ images — README preview still uses Screenshot/Screenshot7.png

How to smoke-test

cargo fmt --check
cargo clippy --all-targets --all-features -- -D warnings
cargo test --all-targets

Manual UI checks:

1. cargo build --release and run ./target/release/linux-it-guy-toolbox.
2. On Install, confirm Brave Browser uses the orange lion PNG and Brave Origin uses Chris’s white-on-black SVG. They must not share the same icon.
3. Confirm other app tiles show the original PNG logos.
4. Copy the binary to a temp dir without assets/ and run it from there; tiles and distro chips should still render.
5. Select only Brave Origin, run with a sudo password, and confirm the log downloads the two pinned URLs, reports a good GPG verification, then runs the installer with FLAVOR=origin.
6. On Remove, Brave Origin should uninstall via the native package path (brave-origin or brave-origin-bin on Arch).