feat: default to all modes, switch mode filter from whitelist to excludedModes blacklist

- NotifyConfig.modes (whitelist) → excludedModes (blacklist, default [] = push everywhere)
- valid modes are tui/json/rpc/print (pi ExtensionMode); invalid entries ignored with warning
- legacy "modes" key is ignored with a deprecation warning
- /ntfy status shows 模式: 全部（排除: json）
- migrate local config: modes array → excludedModes: []

command.ts

@@ -116,7 +116,7 @@ function describeConfig(
 		`配置: ${config.path}`,
 		`渠道: ${channel ? formatChannelLabel(channel, 0) : "ntfy（未配置）"}`,
 		`事件: ${(["idle", "interrupted", "needInput", "exit"] as const).map((key) => `${key}=${config.events[key] ? "on" : "off"}`).join(" ")}`,
-		`模式: ${config.modes.join(",")}`,
+		`模式: 全部${config.excludedModes.length > 0 ? `（排除: ${config.excludedModes.join(", ")}）` : ""}`,
 	];
 	if (last && describeResults)
 		lines.push(