feat: add OpenRouter dictation and speech recognition settings

src/server/settings-body.ts

@@ -12,7 +12,7 @@
  */
 
 import type { ThinkingLevel } from "@earendil-works/pi-agent-core";
-import { isHexColor, isLanguage, isSttLanguage, type ChatSettings } from "../core";
+import { isHexColor, isLanguage, isSttLanguage, isSttModel, type ChatSettings } from "../core";
 import type {
 	AgentSettings,
 	AppearanceSettings,
@@ -98,6 +98,10 @@ export function parseGeneralSettingsBody(body: unknown): SettingsBodyResult<Gene
 		if (!Array.isArray(raw.sttPreferredLanguages) || !raw.sttPreferredLanguages.every(isLanguage)) return { ok: false, error: 'sttPreferredLanguages must be an array of "en" and "ru"' };
 		settings.sttPreferredLanguages = [...new Set(raw.sttPreferredLanguages)];
 	}
+	if (raw.sttModel !== undefined) {
+		if (!isSttModel(raw.sttModel)) return { ok: false, error: "Unknown speech recognition model" };
+		settings.sttModel = raw.sttModel;
+	}
 	return { ok: true, settings };
 }