Jason 2b9b5b0bc3 docs: fix outdated README content and sync across languages ...

- Fix JA README macOS FAQ still claiming app is unsigned (now code-signed & notarized)
- Update SessionManager description from "Claude Code only" to "all supported apps" (EN/ZH/JA)
- Replace non-existent Flatpak download entry with self-build reference (EN/ZH/JA)
- Add OpenCode and OpenClaw filesystem paths to Flatpak minimal permissions
- Bump user manual version to v3.12.3

2026-04-02 22:38:42 +08:00

..

release-notes

…

user-manual

…

proxy-guide-zh.md

…