Prepare Windows release and signing process (#16)

plugin/subminer/lifecycle.lua

@@ -61,8 +61,9 @@ function M.create(ctx)
 		aniskip.clear_aniskip_state()
 		hover.clear_hover_overlay()
 		process.disarm_auto_play_ready_gate()
-		if state.overlay_running or state.texthooker_running then
-			subminer_log("info", "lifecycle", "mpv shutting down, preserving SubMiner background process")
+		if state.overlay_running then
+			subminer_log("info", "lifecycle", "mpv shutting down, hiding SubMiner overlay")
+			process.hide_visible_overlay()
 		end
 	end
 
@@ -75,6 +76,9 @@ function M.create(ctx)
 		mp.register_event("end-file", function()
 			process.disarm_auto_play_ready_gate()
 			hover.clear_hover_overlay()
+			if state.overlay_running then
+				process.hide_visible_overlay()
+			end
 		end)
 		mp.register_event("shutdown", function()
 			hover.clear_hover_overlay()