btr 0.2.3

CLI to standardize build, test, and run commands across projects
Documentation
# Next Features

## Priority 1

- [x] `--profile <name>` as a first-class CLI flag
- [x] named env files like `env_file = ".env.ci"`
- [x] `btr release` as a first-class release workflow

## Priority 2

- [x] watch/dev mode for long-running feedback loops
- [x] richer workspace filtering like `--name` or `--changed-only`
- [x] deeper validation for missing tools, placeholder `run` commands, and env files

## Init And Templates

- [x] template metadata and descriptions
- [x] per-template optional prompts
- [x] `btr templates` or `btr init --list-templates`
- [x] template snapshots and validation coverage

## Platform And Packaging

- [x] improve machine-readable output contracts
- [x] install-time helpers for completions and manpages
- remote or packaged template bundles later