fix: wire v2 setup flow — barrel import, registration, verification

- Import channel barrel from src/index.ts so channel skills that
  uncomment lines in src/channels/index.ts actually execute
- Rewrite setup/register.ts to create v2 entities (agent_groups,
  messaging_groups, messaging_group_agents) in data/v2.db instead
  of v1's store/messages.db
- Fix setup/verify.ts to check v2 central DB for registered groups
- Add prominent "MESSAGE DROPPED" warnings in router when no agent
  groups are wired, with actionable guidance

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/db/index.ts

@@ -20,6 +20,7 @@ export {
   createMessagingGroupAgent,
   getMessagingGroupAgents,
   getMessagingGroupAgent,
+  getMessagingGroupAgentByPair,
   updateMessagingGroupAgent,
   deleteMessagingGroupAgent,
 } from './messaging-groups.js';

src/db/messaging-groups.ts

@@ -71,6 +71,15 @@ export function getMessagingGroupAgents(messagingGroupId: string): MessagingGrou
     .all(messagingGroupId) as MessagingGroupAgent[];
 }
 
+export function getMessagingGroupAgentByPair(
+  messagingGroupId: string,
+  agentGroupId: string,
+): MessagingGroupAgent | undefined {
+  return getDb()
+    .prepare('SELECT * FROM messaging_group_agents WHERE messaging_group_id = ? AND agent_group_id = ?')
+    .get(messagingGroupId, agentGroupId) as MessagingGroupAgent | undefined;
+}
+
 export function getMessagingGroupAgent(id: string): MessagingGroupAgent | undefined {
   return getDb().prepare('SELECT * FROM messaging_group_agents WHERE id = ?').get(id) as
     | MessagingGroupAgent

src/index.ts

@@ -19,8 +19,9 @@ import { writeSessionMessage } from './session-manager.js';
 import { wakeContainer } from './container-runner.js';
 import { log } from './log.js';
 
-// Channel imports — each triggers self-registration
-import './channels/discord.js';
+// Channel barrel — each enabled channel self-registers on import.
+// Channel skills uncomment lines in channels/index.ts to enable them.
+import './channels/index.js';
 
 import type { ChannelAdapter, ChannelSetup, ConversationConfig } from './channels/adapter.js';
 import { initChannelAdapters, teardownChannelAdapters, getChannelAdapter } from './channels/channel-registry.js';

src/router.ts

@@ -58,8 +58,11 @@ export async function routeInbound(event: InboundEvent): Promise<void> {
   // 2. Resolve agent group via messaging_group_agents
   const agents = getMessagingGroupAgents(mg.id);
   if (agents.length === 0) {
-    log.warn('No agent groups configured for messaging group', {
+    // This is a common fresh-install issue: channels work but no agent group
+    // is wired to handle messages. Run setup/register to create the wiring.
+    log.warn('MESSAGE DROPPED — no agent groups wired to this channel. Run setup register step to configure.', {
       messagingGroupId: mg.id,
+      channelType: event.channelType,
       platformId: event.platformId,
     });
     return;
@@ -68,7 +71,10 @@ export async function routeInbound(event: InboundEvent): Promise<void> {
   // Pick the best matching agent (highest priority, trigger matching in future)
   const match = pickAgent(agents, event);
   if (!match) {
-    log.debug('No agent matched for message', { messagingGroupId: mg.id });
+    log.warn('MESSAGE DROPPED — no agent matched trigger rules', {
+      messagingGroupId: mg.id,
+      channelType: event.channelType,
+    });
     return;
   }