Improve recreate command flow

[andreccosta]

Summary

• clean up CLI execution by returning friendly errors, normalizing container recreation inputs, and resolving platform data more safely
• add unit tests covering metadata output, direct invocation, image pulling, and auto-remove container behavior
• inject release version metadata at build time and refresh the README install and usage notes

Verification

• go test ./...
• make all

[Copilot]

Pull request overview

This PR improves the docker recreate CLI/plugin execution flow by returning friendly errors, normalizing container recreation inputs, and resolving image platform data more safely, while also adding unit tests and build-time version injection.

Changes:

• Refactors CLI entrypoint into a testable run/runCommand flow with friendlier error handling and injectable Docker client.
• Updates recreate behavior: platform resolution (descriptor-first, image-inspect fallback), optional image pulling, and safer networking/name handling.
• Adds unit tests for metadata output, direct invocation behavior, image pull consumption/closure, and auto-remove container handling; updates README and Makefile for version injection.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
main.go	Refactors CLI flow, adds build-injected version metadata, and improves recreate/platform/pull behavior with testable abstractions.
main_test.go	Adds unit tests covering metadata, invocation paths, pull behavior, platform resolution, and auto-remove behavior.
README.md	Fixes releases URL typo and clarifies usage for plugin vs direct binary invocation.
Makefile	Injects release version via ldflags and updates dependency fetching to go mod download.

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