Added files

Add ha-watchdog v1.1.0

Go tool that lists Home Assistant apps, lets you choose which to
watch, and starts them again if they stop.

- Interactive menu to list apps (numbered, with state, version and
  available updates) and add or remove them from a watchlist
- Headless -daemon mode that monitors the saved watchlist
- Persistent JSON watchlist
- Retry cap (default 5 starts per 10 minutes) with a cooldown between
  attempts; gives up on apps that keep failing
- Persistent notifications on restart and when giving up
- Skips apps that are unavailable, detached or not installed
- Backends: Supervisor API, local ha CLI, and remote ha CLI over SSH
  for running from a separate monitoring machine
- Version and build date injected via ldflags (see Makefile)
- README covering build, install, remote monitoring and systemd setup

go.mod

@@ -0,0 +1,3 @@
+module ha-watchdog
+
+go 1.21