fix(google-meet): preserve realtime provider fallback

CHANGELOG.md

@@ -50,6 +50,7 @@ Docs: https://docs.openclaw.ai
 - Google Meet: add `chrome.audioBufferBytes` for generated command-pair SoX audio commands and lower the default buffer from SoX's 8192 bytes to 4096 bytes to reduce Chrome talk-back latency.
 - Google Meet: split realtime provider config into agent-mode transcription and bidi-mode voice providers, and migrate legacy Gemini Live bidi configs with `doctor --fix`, so Gemini Live can back direct bidi fallback without breaking the default OpenClaw agent talk-back path.
 - Google Meet: expose `voiceCall.postDtmfSpeechDelayMs` in the plugin manifest schema and setup hints, so manifest-based config editing accepts the runtime-supported Twilio delay key. Thanks @vincentkoc.
+- Google Meet: keep explicit non-Google `realtime.provider` values as the transcription provider compatibility fallback when `realtime.transcriptionProvider` is unset. Thanks @vincentkoc.
 - Telegram: render shared interactive reply buttons in reply delivery so plugin approval messages show inline keyboards. (#76238) Thanks @keshavbotagent.
 - Agents/cli-runner: drop a saved `claude-cli` resume sessionId at preparation time when its on-disk transcript no longer exists in `~/.claude/projects/`, so a stale binding from a half-installed `update.run` cannot trap follow-up runs (auto-reply / Telegram direct) in a `claude --resume` timeout loop; the run starts fresh and the new sessionId is written back through the existing post-run flow. (#77030; refs #77011) Thanks @openperf.
 - Release validation: install the cross-OS TypeScript harness through Windows-safe Node/npm shims so native Windows package checks reach the OpenClaw smoke suites instead of exiting before artifact capture. Thanks @vincentkoc.

extensions/google-meet/index.test.ts

@@ -417,6 +417,29 @@ describe("google-meet plugin", () => {
     });
   });
 
+  it("keeps realtime.provider as the transcription compatibility fallback", () => {
+    expect(
+      resolveGoogleMeetConfig({
+        realtime: {
+          provider: "custom-stt",
+        },
+      }).realtime,
+    ).toMatchObject({
+      provider: "custom-stt",
+      transcriptionProvider: "custom-stt",
+    });
+    expect(
+      resolveGoogleMeetConfig({
+        realtime: {
+          provider: "google",
+        },
+      }).realtime,
+    ).toMatchObject({
+      provider: "google",
+      transcriptionProvider: "openai",
+    });
+  });
+
   it("uses voiceProvider for bidi and transcriptionProvider for agent mode resolution", () => {
     const voiceProviders: RealtimeVoiceProviderPlugin[] = [
       {

extensions/google-meet/src/config.ts

@@ -443,6 +443,8 @@ export function resolveGoogleMeetConfigWithEnv(
   const twilio = asRecord(raw.twilio);
   const voiceCall = asRecord(raw.voiceCall);
   const realtime = asRecord(raw.realtime);
+  const realtimeProvider = normalizeOptionalString(realtime.provider);
+  const resolvedRealtimeProvider = realtimeProvider ?? DEFAULT_GOOGLE_MEET_CONFIG.realtime.provider;
   const oauth = asRecord(raw.oauth);
   const auth = asRecord(raw.auth);
 
@@ -537,11 +539,12 @@ export function resolveGoogleMeetConfigWithEnv(
         realtime.strategy,
         DEFAULT_GOOGLE_MEET_CONFIG.realtime.strategy,
       ),
-      provider:
-        normalizeOptionalString(realtime.provider) ?? DEFAULT_GOOGLE_MEET_CONFIG.realtime.provider,
+      provider: resolvedRealtimeProvider,
       transcriptionProvider:
         normalizeOptionalString(realtime.transcriptionProvider) ??
-        DEFAULT_GOOGLE_MEET_CONFIG.realtime.transcriptionProvider,
+        (realtimeProvider && realtimeProvider !== "google"
+          ? resolvedRealtimeProvider
+          : DEFAULT_GOOGLE_MEET_CONFIG.realtime.transcriptionProvider),
       voiceProvider: normalizeOptionalString(realtime.voiceProvider),
       model: normalizeOptionalString(realtime.model) ?? DEFAULT_GOOGLE_MEET_CONFIG.realtime.model,
       instructions: