feat: 100% Docker CLI flag compatibility across all 111 commands

Add complete Docker CLI flag parity for every command and subcommand:

- run/create: ~50 flags (--attach, --cpu-shares, --gpus, --init, --memory, --privileged, etc.)
- build: ~25 BuildKit/Buildx flags (--cache-from, --load, --push, --secret, --ssh, etc.)
- compose: ~200+ flags across 22 subcommands
- network/volume/system: all missing flags added
- New commands: commit, container prune, image rm/inspect/prune, container export

Also adds CHANGELOG.md, COMMANDS.md reference, and What's New sections to both READMEs.

Author: us

CHANGELOG.md

@@ -0,0 +1,122 @@
+# Changelog
+
+All notable changes to Mocker are documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+- **100% Docker CLI flag compatibility** across all 111 commands/subcommands
+- `mocker commit` command with `--author`, `--change`, `--message`, `--no-pause`
+- `mocker container prune` command with `--filter`, `--force`
+- `mocker container export` (moved under `container` subcommand group)
+- `mocker image rm` command with `--force`, `--no-prune`, `--platform`
+- `mocker image inspect` command with `--format`, `--platform` and JSON output
+- `mocker image prune` command with `--all`, `--filter`, `--force`
+- `mocker run` / `mocker create`: added ~50 Docker-compatible flags including `--attach`, `--cpu-shares`, `--publish-all`, `--quiet`, `--sig-proxy`, `--oom-kill-disable`, `--annotation`, `--blkio-weight`, `--cap-add/drop`, `--cgroup-parent`, `--cgroupns`, `--cidfile`, `--cpus`, `--device`, `--dns`, `--entrypoint`, `--gpus`, `--health-cmd`, `--init`, `--ipc`, `--link`, `--log-driver`, `--mac-address`, `--memory`, `--network-alias`, `--pid`, `--platform`, `--privileged`, `--read-only`, `--restart`, `--runtime`, `--security-opt`, `--shm-size`, `--stop-signal`, `--stop-timeout`, `--storage-opt`, `--sysctl`, `--tmpfs`, `--ulimit`, `--userns`, `--volumes-from`, `--workdir`
+- `mocker build`: added ~25 BuildKit/Buildx flags including `--add-host`, `--allow`, `--annotation`, `--attest`, `--build-context`, `--builder`, `--cache-from`, `--cache-to`, `--call`, `--cgroup-parent`, `--check`, `--iidfile`, `--load`, `--metadata-file`, `--no-cache-filter`, `--output`, `--progress`, `--provenance`, `--push`, `--sbom`, `--secret`, `--shm-size`, `--ssh`, `--ulimit`
+- `mocker update`: added `--blkio-weight`, `--cpu-period`, `--cpu-quota`, `--cpu-rt-period`, `--cpu-rt-runtime`, `--cpuset-cpus`, `--cpuset-mems`, `--memory-reservation`, `--memory-swap`
+- `mocker history` / `mocker save` / `mocker load` / `mocker import`: added `--platform`
+- `mocker images`: added `--tree`
+- Network commands: added `--alias`, `--driver-opt`, `--gw-priority`, `--ip`, `--ip6`, `--link`, `--link-local-ip` to `network connect`; added `--attachable`, `--aux-address`, `--config-from`, `--config-only`, `--ingress`, `--internal`, `--ip-range`, `--ipam-driver`, `--ipam-opt`, `--ipv4`, `--ipv6`, `--label`, `--opt`, `--scope` to `network create`; added `--force` to `network disconnect/rm`; added `--format`, `--verbose` to `network inspect`
+- Volume commands: added `--label`, `--opt` to `volume create`; added `--format` to `volume inspect`; added `--force` to `volume rm`
+- System commands: added `--format` to `system info`; added `--filter` to `system prune`
+- Compose: added ~200+ flags across 22 subcommands for full Docker Compose CLI compatibility
+- `COMMANDS.md` — comprehensive reference of all 111 supported commands and flags
+
+## [0.1.8] - 2026-03-09
+
+### Added
+- `--env-file` flag support for `mocker run` — load environment variables from file
+
+### Fixed
+- Homebrew tap commit author and runner configuration (macOS 26)
+
+### CI
+- Added PR test workflow with macOS 26 runner
+
+## [0.1.7] - 2026-03-08
+
+### Added
+- AGPL-3.0 license
+- "Replace docker with mocker" quick-start section in README
+- `--rm` flag for `mocker run` — auto-remove container on exit
+- MenuBar GUI marked as "coming soon" in docs
+
+### Fixed
+- `compose.yaml` and `compose.yml` now recognized as default compose file names (in addition to `docker-compose.yml`)
+- Compose variable substitution (`${VAR:-default}`) now resolves correctly
+- Named volumes now skip virtiofs bind mount for compatibility
+- Container remove stop timeout fixed for faster cleanup
+
+### Changed
+- Documentation redesigned with den-style frontmatter and clean formatting
+
+## [0.1.6] - 2026-03-08
+
+### Fixed
+- Named volumes now resolve to correct host paths for compose services
+
+## [0.1.5] - 2026-03-08
+
+### Fixed
+- Relative build context paths now resolve against CWD correctly
+
+## [0.1.4] - 2026-03-08
+
+### Fixed
+- `container build` now always passes `-f` flag to use correct Dockerfile from build context directory
+
+## [0.1.3] - 2026-03-08
+
+### Added
+- `compose kill` subcommand
+- `--timeout` / `-t` flag for `compose down`
+
+## [0.1.2] - 2026-03-08
+
+### Added
+- `compose up` now accepts service names to start specific services
+- `compose down` now supports `--remove-orphans` and `--volumes` flags
+
+## [0.1.1] - 2026-03-08
+
+### Added
+- Homebrew installation support (`brew tap us/tap && brew install mocker`)
+- Release workflow — automated binary builds and homebrew formula updates
+
+### Changed
+- Centered header in README
+
+## [0.1.0] - 2026-03-07
+
+### Added
+- Initial release of Mocker
+- **Container lifecycle**: `run`, `create`, `start`, `stop`, `restart`, `rm`, `kill`, `pause`, `unpause`, `rename`, `wait`, `attach`
+- **Container inspection**: `ps`, `inspect`, `logs`, `stats`, `top`, `port`, `diff`, `export`
+- **Image management**: `pull`, `push`, `build`, `images`, `tag`, `rmi`, `save`, `load`, `import`, `history`, `search`
+- **Network management**: `network create/ls/rm/inspect/connect/disconnect`
+- **Volume management**: `volume create/ls/rm/inspect`
+- **System**: `system info`, `system prune`, `version`, `events`
+- **Docker Compose v2**: `up`, `down`, `ps`, `logs`, `restart`, `build`, `pull`, `push`, `config`, `exec`, `run`, `stop`, `start`, `kill`, `rm`, `pause`, `unpause`, `top`, `events`, `images`, `port`, `cp`
+- Real container execution via Apple Containerization framework
+- `mocker build` with live streaming output via `container build`
+- `mocker stats` — real CPU/memory from VirtualMachine.xpc process
+- Port mapping (`-p`) via userspace TCP proxy subprocess
+- Inter-service hostname injection for compose networking
+- Docker-style short image reference normalization
+- JSON state persistence in `~/.mocker/`
+- Swift 6 actor-based concurrency throughout
+
+[Unreleased]: https://github.com/us/mocker/compare/v0.1.8...HEAD
+[0.1.8]: https://github.com/us/mocker/compare/v0.1.7...v0.1.8
+[0.1.7]: https://github.com/us/mocker/compare/v0.1.6...v0.1.7
+[0.1.6]: https://github.com/us/mocker/compare/v0.1.5...v0.1.6
+[0.1.5]: https://github.com/us/mocker/compare/v0.1.4...v0.1.5
+[0.1.4]: https://github.com/us/mocker/compare/v0.1.3...v0.1.4
+[0.1.3]: https://github.com/us/mocker/compare/v0.1.2...v0.1.3
+[0.1.2]: https://github.com/us/mocker/compare/v0.1.1...v0.1.2
+[0.1.1]: https://github.com/us/mocker/compare/v0.1.0...v0.1.1
+[0.1.0]: https://github.com/us/mocker/releases/tag/v0.1.0