fix: polish reply threading + tool dedupe (thanks @mneves75) (#326)

src/agents/pi-embedded-runner.ts

@@ -226,6 +226,8 @@ export type EmbeddedPiRunResult = {
   // True if a messaging tool (telegram, whatsapp, discord, slack, sessions_send)
   // successfully sent a message. Used to suppress agent's confirmation text.
   didSendViaMessagingTool?: boolean;
+  // Texts successfully sent via messaging tools during the run.
+  messagingToolSentTexts?: string[];
 };
 
 export type EmbeddedPiCompactResult = {
@@ -1253,6 +1255,7 @@ export async function runEmbeddedPiAgent(params: {
             toolMetas,
             unsubscribe,
             waitForCompactionRetry,
+            getMessagingToolSentTexts,
             didSendViaMessagingTool,
           } = subscription;
 
@@ -1536,6 +1539,7 @@ export async function runEmbeddedPiAgent(params: {
               aborted,
             },
             didSendViaMessagingTool: didSendViaMessagingTool(),
+            messagingToolSentTexts: getMessagingToolSentTexts(),
           };
         } finally {
           restoreSkillEnv?.();

src/agents/pi-embedded-subscribe.ts

@@ -778,6 +778,7 @@ export function subscribeEmbeddedPiSession(params: {
     toolMetas,
     unsubscribe,
     isCompacting: () => compactionInFlight || pendingCompactionRetry > 0,
+    getMessagingToolSentTexts: () => messagingToolSentTexts.slice(),
     // Returns true if any messaging tool successfully sent a message.
     // Used to suppress agent's confirmation text (e.g., "Respondi no Telegram!")
     // which is generated AFTER the tool sends the actual answer.