Graduate 2.0.0-rc.1 to stable. Bump version across package, plugin,
marketplace, OpenCode, agent metadata, VERSION, and all localized docs.
Add 2.0.0 release notes + README sections (en/zh/pt-BR/tr), CHANGELOG
entry, and the ECC community Discord bot (dependency-free gateway client
+ guild command registrar). Update copilot-support and release-surface
tests for the sponsored-review migration and the 2.0.0 surface.
Codex CLI resolves plugin paths relative to the home directory (~),
not relative to marketplace.json. The previous path "./everything-claude-code"
resolved to ~/everything-claude-code (non-existent), causing "plugin/read failed"
error in the TUI.