P8: Finalize CI/CD templates, prod ArgoCD app, and CHANGELOG for v0.1.0
- miroir-ci: use cargo fmt --all, add pre-release detection for GitHub releases
- miroir-ci-smoke: fix secret ref to github-token
- miroir-release: rewrite github-release step with gh CLI, build binaries in
release step, add pre-release flag and resource limits
- miroir-release-ready: fix serviceAccountName to argo-workflow
- miroir-application.yaml: switch prod to Redis backend, 4 Meilisearch replicas
- redis.rs: remove unused conn() helper
- CHANGELOG: date 0.1.0 release, add missing release/prod entries
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>