v0.5.5

v0.5.5

Changes

• Switched the web UI to a flatter graphite theme: neutral dark surfaces, no decorative gradients, and blue reserved mainly for primary action buttons.
• Fixed session revocation so the settings screen lists only active Core sessions and immediately reflects per-device revoke actions.
• Improved assistant stop behavior by aborting the active client stream locally while still sending the server-side cancel request.
• Removed runner-side apt-get update from GitHub Actions. Core now gets protoc from arduino/setup-protoc, and deploy builds or saves images with the runner's preinstalled Docker instead of installing Podman first.