fix: align reasoning payload typing for #24991 (thanks @stakeswky)

CHANGELOG.md

@@ -49,6 +49,7 @@ Docs: https://docs.openclaw.ai
 - Agents/Tool warnings: suppress `sessions_send` relay errors from chat-facing warning payloads to avoid leaking transient inter-session transport failures. (#24740) Thanks @Glucksberg.
 - WhatsApp/Logging: redact outbound recipient identifiers in WhatsApp outbound + heartbeat logs and remove message/poll preview text from those log lines. (#24980) Thanks @coygeek.
 - WhatsApp/Auto-reply: send only final payloads to WhatsApp, suppress tool/block payload leakage (reasoning/thinking), and force block streaming off for WhatsApp dispatch so final-only delivery cannot cause silent turns. (#24962) Thanks @SidQin-cyber.
+- Channels/Reasoning: suppress reasoning/thinking payload segments in the shared channel dispatch path so non-Telegram channels (including WhatsApp and Web) no longer emit internal reasoning blocks as user-visible replies. (#24991) Thanks @stakeswky.
 - Telegram/Media SSRF: keep RFC2544 benchmark range (`198.18.0.0/15`) blocked by default, add an explicit SSRF-policy opt-in for Telegram media downloads, and keep other channels/URL fetch paths blocked. (#24982) Thanks @stakeswky.
 - Security/iOS deep links: require local confirmation (or trusted key) before forwarding `openclaw://agent` requests from iOS to gateway `agent.request`, and strip unkeyed delivery-routing fields to reduce exfiltration risk. This ships in the next npm release. Thanks @GCXWLP for reporting.
 - Security/Voice Call: harden Twilio webhook replay handling by preserving provider event IDs through normalization, adding bounded replay dedupe, and enforcing per-call turn-token matching for call-state transitions. This ships in the next npm release. Thanks @jiseoung for reporting.

src/agents/pi-embedded-payloads.ts

@@ -2,6 +2,7 @@ export type BlockReplyPayload = {
   text?: string;
   mediaUrls?: string[];
   audioAsVoice?: boolean;
+  isReasoning?: boolean;
   replyToId?: string;
   replyToTag?: boolean;
   replyToCurrent?: boolean;

src/agents/pi-embedded-runner/run/payloads.ts

@@ -108,6 +108,7 @@ export function buildEmbeddedRunPayloads(params: {
   mediaUrls?: string[];
   replyToId?: string;
   isError?: boolean;
+  isReasoning?: boolean;
   audioAsVoice?: boolean;
   replyToTag?: boolean;
   replyToCurrent?: boolean;
@@ -116,6 +117,7 @@ export function buildEmbeddedRunPayloads(params: {
     text: string;
     media?: string[];
     isError?: boolean;
+    isReasoning?: boolean;
     audioAsVoice?: boolean;
     replyToId?: string;
     replyToTag?: boolean;