Set version 1.0.20

[squarepots]

Summary

Version change only: src-tauri/tauri.conf.json, package.json, src-tauri/Cargo.toml, and src-tauri/Cargo.lock move from 1.0.19 to 1.0.20.

1.0.20 releases #141 (menu dismissal), #142 (Sign in again in every ChatGPT account menu), and #143 (shared managed refresh with provider-confirmed rejection). #144 and #145 are documentation.

Real-account acceptance

• Preview: GSwitch_1.0.20-rc.1_x64-setup.exe, built from 87916f0. The application source at that commit is identical to main at c9c85fa; the commits since then changed documentation only.
• Result: the maintainer reported the acceptance as passed on that preview and requested the 1.0.20 release. The individual flows were exercised by the maintainer and are not itemized here.

Validation

• pnpm run version:sync and pnpm run version:check: verified 1.0.20.
• git diff --check passed.

🤖 Generated with Claude Code