sops-encrypted-envs-mac

Convert software repositories from plaintext dotenv files to SOPS + age encrypted dotenv files. Use when asked to replace .env files with encrypted secrets, migrate a repo to sops/age, update Node/Python/Ruby/Go/Docker/Make dev and test commands to decrypt at runtime, add agent-facing docs such as AGENTS.md or CLAUDE.md, or verify that a repo no longer depends on long-lived plaintext .env files.