[Epic 9] DX extras — devcontainer, Dockerfile, Danger decision, topics

[ulises-jeremias]

Summary

Developer experience and community discoverability extras.

CNA mapping

.devcontainer/, root Dockerfile, tools/danger, repo topics/Hacktoberfest.

Why

Parity for contributors and Hacktoberfest readiness.

Sub-issues

• Devcontainer for uv-based monorepo #64 Devcontainer for uv-based monorepo
• Root Dockerfile for CLI (local/dev) #65 Root Dockerfile for CLI (local/dev)
• Decision: Danger.js vs CodeRabbit-only for PR automation #66 Decision: Danger.js vs CodeRabbit-only for PR automation
• Repo topics + Hacktoberfest labels/readiness #67 Repo topics + Hacktoberfest labels/readiness

Blocks / dependencies

none

Blocked by: #2 foundation

Reference

Parity matrix (workspace): knowledge/create-python-app-parity-matrix.md
Reference repo: https://github.com/Create-Node-App/create-node-app

[ulises-jeremias]

DX #64–#67 merged.