- Deprecate "enclave" sub‑command and related config/env names; commands are now accessed directly (e.g., `doppler setup`) while old names stay for backward compatibility
- Introduce new environment variables `DOPPLER_CONFIG` and `DOPPLER_PROJECT` and rename configuration options `enclave.config`/`enclave.project` to `config`/`project`
- Improve CLI robustness: hide deprecated commands from help, ensure HTTP connections and response bodies are closed, and add better handling for non‑JSON responses