feat: enhance message context with full ID support for replies and caching

- Updated message processing to include full message IDs alongside short IDs for better context resolution.
- Improved reply handling by caching inbound messages, allowing for accurate sender and body resolution without exposing dropped content.
- Adjusted tests to validate the new full ID properties and their integration into the message handling workflow.

src/auto-reply/reply/agent-runner-execution.ts

@@ -299,6 +299,8 @@ export async function runAgentTurnWithFallback(params: {
                   const { text, skip } = normalizeStreamingText(payload);
                   const hasPayloadMedia = (payload.mediaUrls?.length ?? 0) > 0;
                   if (skip && !hasPayloadMedia) return;
+                  const currentMessageId =
+                    params.sessionCtx.MessageSidFull ?? params.sessionCtx.MessageSid;
                   const taggedPayload = applyReplyTagsToPayload(
                     {
                       text,
@@ -308,12 +310,12 @@ export async function runAgentTurnWithFallback(params: {
                       replyToTag: payload.replyToTag,
                       replyToCurrent: payload.replyToCurrent,
                     },
-                    params.sessionCtx.MessageSid,
+                    currentMessageId,
                   );
                   // Let through payloads with audioAsVoice flag even if empty (need to track it)
                   if (!isRenderablePayload(taggedPayload) && !payload.audioAsVoice) return;
                   const parsed = parseReplyDirectives(taggedPayload.text ?? "", {
-                    currentMessageId: params.sessionCtx.MessageSid,
+                    currentMessageId,
                     silentToken: SILENT_REPLY_TOKEN,
                   });
                   const cleaned = parsed.text || undefined;