[adrianberriel]

Description

• Adds screenshots as pipeline evidence: Release run, Docker Hub tags and v0.3.0 detail, branch protection rule, and Render service and deploy events.
• Replaces the outdated pipeline-release.png and dockerhub-tags.png, and references every image from the README with a short explanation.
• Corrects the Render notes: the deploy hook does not change the configured image, which was updated by hand to v0.3.0.
• Updates the project status file accordingly.

Test evidence

N/A (documentation only).