moki/hello-agents @ codex/recover-pr-462-squashed

espejo de https://github.com/datawhalechina/hello-agents.git

dongyu 8e5cf15a65 feat: restore graduation project from PR #462		hace 1 mes
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001-backend-framework-fastapi.md	8e5cf15a65 feat: restore graduation project from PR #462	hace 2 semanas
002-frontend-framework-vue3.md	8e5cf15a65 feat: restore graduation project from PR #462	hace 2 semanas
003-database-selection-sqlite.md	8e5cf15a65 feat: restore graduation project from PR #462	hace 2 semanas