Implement health check for deploy. Make version endpoint to return revision if not set

internal/api/health/module.go

@@ -0,0 +1,16 @@
+package health
+
+import (
+	"net/http"
+
+	"go.uber.org/fx"
+)
+
+var Module = fx.Options(
+	fx.Provide(New),
+)
+
+// Handler health handler interface
+type Handler interface {
+	Health(http.ResponseWriter, *http.Request)
+}