• Merge pull request #785 from kaitranntt/kai/feat/783-discord-channels
• test: isolate shared-state test suites for CI stability
• docs(channels): document official Claude channel support
• chore(types): use type-only imports
• fix(settings): stabilize websearch and quota checks
• feat(channels): auto-enable official Claude channels
• style: format official channel files
• feat(channels): support telegram and imessage
• feat(channels): auto-enable official discord plugin