Add guard rails against manipulating mirrors

Snapshot mirrors should normally be promoted using "mirror promote", and
not started manually. This adds guard rails against that to the "start",
"stop", and "disable" state commands to prevent changing mirror states
without an explicit "--force" option.

api-daemon/pvcapid/flaskapi.py

@@ -2645,7 +2645,7 @@ class API_VM_State(Resource):
           - in: query
             name: force
             type: boolean
-            description: Whether to force stop instead of shutdown VM during disable
+            description: For "disable", force stop instead of shutdown and/or force mirror state; for "start" or "stop", force mirror state.
           - in: query
             name: wait
             type: boolean
@@ -2667,15 +2667,15 @@ class API_VM_State(Resource):
         wait = bool(strtobool(reqargs.get("wait", "false")))
 
         if state == "start":
-            return api_helper.vm_start(vm)
+            return api_helper.vm_start(vm, force=force)
         if state == "shutdown":
             return api_helper.vm_shutdown(vm, wait)
         if state == "stop":
-            return api_helper.vm_stop(vm)
+            return api_helper.vm_stop(vm, force=force)
         if state == "restart":
             return api_helper.vm_restart(vm, wait)
         if state == "disable":
-            return api_helper.vm_disable(vm, force)
+            return api_helper.vm_disable(vm, force=force)
         abort(400)