feat(cli): deployment history and version-scoped diff/review

[Ruari-Phipps]

Summary

Adds poly deployments, extends diff / review with hash and --before / --after / --files, updates.

Motivation

Improves visibility into deployed versions and makes comparing local vs remote or named versions consistent in the CLI.

Changes

• poly deployments with --env, pagination, --hash, --oneline, --json; Rich output with sandbox / pre-release / live badges.
• get_deployments (API + project): client_env, list return shape, tuple with active hashes on AgentStudioProject.
• poly diff / poly review: optional hash, --files, --before / --after; --delete on review; shared diff computation.
• poly revert / poly format: CLI shape updates to be consistent (--all removed; format uses --files).

Test strategy

• Added/updated unit tests
• Manual CLI testing (poly <command>)
• Tested against a live Agent Studio project
• N/A (docs, config, or trivial change)

Checklist

• ruff check . and ruff format --check . pass
• pytest passes
• No breaking changes to the poly CLI interface (or migration path documented)
• Commit messages follow conventional commits

Screenshots / Logs

--details

--env

[github-actions]

Coverage Report

Base (main)	PR	Change
70.2%	69.3%	-0.9% ⚠️

Changed file coverage

File	Coverage	Change
poly/output/console.py	17.9%	-4.4% ⚠️
poly/cli.py	30.8%	-0.5% ⚠️
poly/handlers/platform_api.py	38.5%	+2.0% ✅
poly/project.py	62.9%	-1.1% ⚠️