ma-browser v0.12.1 — M4 discovery + version bump

Highlights

• Includes M4 discovery (A1–A4) already on main: site_recommend by active tab, catalog heat reorder, Capabilities tab, CommandLog.
• Semver bump to 0.12.1 across package / Cargo / tauri / zip naming (D6).

Portable zip

• ma-browser-tray-portable-v0.12.1.zip
• SHA-256: 2319d36d60e5a332bbfce97b2c7dc3dea1c139bacaac143f752885247f571cad

Notes

• Does not modify Release v0.12.0.
• Merged via PR #14 (feat/v0.12.1-patch → main).