feat: make inbound envelopes configurable

Co-authored-by: Shiva Prasad <shiv19@users.noreply.github.com>

src/web/auto-reply/monitor/message-line.ts

@@ -1,5 +1,8 @@
 import { resolveMessagePrefix } from "../../../agents/identity.js";
-import { formatInboundEnvelope } from "../../../auto-reply/envelope.js";
+import {
+  formatInboundEnvelope,
+  type EnvelopeFormatOptions,
+} from "../../../auto-reply/envelope.js";
 import type { loadConfig } from "../../../config/config.js";
 import type { WebInboundMsg } from "../types.js";
 
@@ -14,8 +17,10 @@ export function buildInboundLine(params: {
   cfg: ReturnType<typeof loadConfig>;
   msg: WebInboundMsg;
   agentId: string;
+  previousTimestamp?: number;
+  envelope?: EnvelopeFormatOptions;
 }) {
-  const { cfg, msg, agentId } = params;
+  const { cfg, msg, agentId, previousTimestamp, envelope } = params;
   // WhatsApp inbound prefix: channels.whatsapp.messagePrefix > legacy messages.messagePrefix > identity/defaults
   const messagePrefix = resolveMessagePrefix(cfg, agentId, {
     configured: cfg.channels?.whatsapp?.messagePrefix,
@@ -37,5 +42,7 @@ export function buildInboundLine(params: {
       e164: msg.senderE164,
       id: msg.senderJid,
     },
+    previousTimestamp,
+    envelope,
   });
 }