v0.3.0

Backward-incompatible: router and model no longer have defaults, and the default topics changed. An install that relied on the old defaults sets router, model and topics in the options to keep its behaviour.

• The add-on installs from the repository: the Dockerfile builds the binary, for amd64 and aarch64.
• With no router set, daily discovery adds the most starred new projects for each topic, so the page fills with no option typed.
• An empty model takes the first model the router lists.
• interests: the owner's setup in their own words, for the model's brief; empty means the topics.
• The page's footer and the log say what discovery does with the current options.
• Default topics: home-assistant, hacs, esphome, zigbee, matter, home-automation.
• Docker's health check replaces the Supervisor watchdog; an AppArmor profile; the config folder is mapped as app_config.
• The CLI has no default host: --host or GITHUB_FINDS_HOST, with --key, --ssh-port and --dir or their variables; root on the host needs no sudo.