feat: wire multi-agent config and routing

Co-authored-by: Mark Pors <1078320+pors@users.noreply.github.com>

src/infra/outbound/deliver.test.ts

@@ -114,7 +114,9 @@ describe("deliverOutboundPayloads", () => {
 
   it("uses iMessage media maxBytes from agent fallback", async () => {
     const sendIMessage = vi.fn().mockResolvedValue({ messageId: "i1" });
-    const cfg: ClawdbotConfig = { agent: { mediaMaxMb: 3 } };
+    const cfg: ClawdbotConfig = {
+      agents: { defaults: { mediaMaxMb: 3 } },
+    };
 
     await deliverOutboundPayloads({
       cfg,

src/infra/outbound/deliver.ts

@@ -82,7 +82,9 @@ function resolveMediaMaxBytes(
       : (cfg.imessage?.accounts?.[normalizedAccountId]?.mediaMaxMb ??
         cfg.imessage?.mediaMaxMb);
   if (providerLimit) return providerLimit * MB;
-  if (cfg.agent?.mediaMaxMb) return cfg.agent.mediaMaxMb * MB;
+  if (cfg.agents?.defaults?.mediaMaxMb) {
+    return cfg.agents.defaults.mediaMaxMb * MB;
+  }
   return undefined;
 }
 

src/infra/outbound/targets.ts

@@ -130,7 +130,7 @@ export function resolveHeartbeatDeliveryTarget(params: {
   entry?: SessionEntry;
 }): OutboundTarget {
   const { cfg, entry } = params;
-  const rawTarget = cfg.agent?.heartbeat?.target;
+  const rawTarget = cfg.agents?.defaults?.heartbeat?.target;
   const target: HeartbeatTarget =
     rawTarget === "whatsapp" ||
     rawTarget === "telegram" ||
@@ -148,9 +148,9 @@ export function resolveHeartbeatDeliveryTarget(params: {
   }
 
   const explicitTo =
-    typeof cfg.agent?.heartbeat?.to === "string" &&
-    cfg.agent.heartbeat.to.trim()
-      ? cfg.agent.heartbeat.to.trim()
+    typeof cfg.agents?.defaults?.heartbeat?.to === "string" &&
+    cfg.agents.defaults.heartbeat.to.trim()
+      ? cfg.agents.defaults.heartbeat.to.trim()
       : undefined;
 
   const lastProvider =