feat: add podcast plugin — source-to-YouTube Korean podcast generator

chore: add AGENTS.md to plugins

docs: add team-assemble to README

feat: add team-assemble plugin for dynamic agent team orchestration

fix(kakaotalk): support English KakaoTalk window title and time patterns (#15)

feat(clarify): add vague / unknown / metamedium skill for Known/Unknown quadrant analysis (#16)

refactor(gmail): sync with deep-thought and translate to English (#11)

feat(gmail): add accounts.yaml for account metadata

docs(gmail): add detailed CLI script documentation

feat(gmail): add Gmail plugin with multi-account support

feat(doubt): add doubt plugin for response re-validation

fix(kakaotalk): add kakaotalk to marketplace.json

fix(kakaotalk): correct trigger phrases and examples in READMEs

docs: add kakaotalk demo gif to main READMEs

feat(kakaotalk): add demo gif