feat: add Russian localization and independent STT languages

src/server/settings-body.ts

@@ -86,6 +86,12 @@ export function parseGeneralSettingsBody(body: unknown): SettingsBodyResult<Gene
 		}
 		settings.autoUpdate = raw.autoUpdate;
 	}
+	for (const key of ["language", "sttLanguage"] as const) {
+		if (raw[key] !== undefined) {
+			if (raw[key] !== "en" && raw[key] !== "ru") return { ok: false, error: `${key} must be "en" or "ru"` };
+			settings[key] = raw[key];
+		}
+	}
 	return { ok: true, settings };
 }