Miabi v1.4.0

What's Changed

• fix(release): serve the installers from the repo, not from release as… by @jkaninda in #13
• feat(labels): give the Miabi stack its own platform identity by @jkaninda in #14
• feat(cli): miabi install/update — Miabi owns its own stack by @jkaninda in #15
• docs: update installation and configuration reference, update install.sh by @jkaninda in #16
• feat(cli): gateway config + control_url in the stack manifest by @jkaninda in #17
• feat(cli): miabi restart stack containers by @jkaninda in #18
• ci(release): push the bump branch by @jkaninda in #19
• feat(installer): docker run only — install.sh no longer sets up Compose by @jkaninda in #20

Full Changelog: v1.3.0...v1.4.0