feat: pause send queue on interrupt (Codex-style) and edit-overwrites-composer

[luoxuanzao]

Summary

• Codex-style queue pause: interrupting a streaming turn now suspends the send queue instead of draining it. The panel header switches to a paused notice ("Queue paused because you interrupted the current response") with a Resume action on the right; queued entries are preserved and no longer auto-send.
• Resume clears the pause, immediately sends the head entry, and restores the normal one-per-turn drain. The pause state also resets when the queue empties or the conversation switches.
• Editing a queued message now replaces the composer content (text and attached images) instead of appending to it.
• Pause/resume strings localized in all ten locales; CHANGELOG updated.

Verification

• npm run typecheck
• npm run lint
• npm run test (3349 tests, incl. pause-blocks-process/resume-drains and edit-overwrites-composer cases)
• npm run build
• npm run release:check
• npm run audit:prod
• Tested affected qodercli behavior against a real CLI when applicable (manual pass in the test vault: stop pauses queue with paused header + Resume, resume drains head, edit overwrites composer)

Safety

• No credentials, private vault content, internal URLs, or personal paths are included
• User-visible changes are documented in CHANGELOG.md