setup: narrow legacy room registration surface

src/db.test.ts

@@ -2271,6 +2271,25 @@ describe('message query LIMIT', () => {
 // --- RegisteredGroup isMain round-trip ---
 
 describe('registered group isMain', () => {
+  it('projects trigger metadata from canonical room settings into registered groups', () => {
+    _setRegisteredGroupForTests('dc:triggered', {
+      name: 'Triggered Room',
+      folder: 'triggered-room',
+      trigger: '@Andy',
+      added_at: '2024-01-01T00:00:00.000Z',
+      requiresTrigger: true,
+    });
+
+    expect(getRegisteredGroup('dc:triggered')).toMatchObject({
+      trigger: '@Andy',
+      requiresTrigger: true,
+    });
+    expect(getAllRoomBindings()['dc:triggered']).toMatchObject({
+      trigger: '@Andy',
+      requiresTrigger: true,
+    });
+  });
+
   it('persists isMain=true through set/get round-trip', () => {
     _setRegisteredGroupForTests('dc:main', {
       name: 'Main Chat',

src/db/room-registration.ts

@@ -244,8 +244,10 @@ export function buildRegisteredGroupFromStoredSettings(
     jid: stored.chatJid,
     name: stored.name || stored.chatJid,
     folder: stored.folder,
+    trigger: stored.trigger,
     added_at: capabilityMetadata?.createdAt || new Date(0).toISOString(),
     agentConfig: capabilityMetadata?.agentConfig,
+    requiresTrigger: stored.requiresTrigger ?? false,
     isMain: stored.isMain ? true : undefined,
     agentType: resolvedAgentType,
     workDir: stored.workDir,

src/types.ts

@@ -151,7 +151,7 @@ export interface RegisteredGroup {
   trigger?: string;
   added_at: string;
   agentConfig?: AgentConfig;
-  requiresTrigger?: boolean; // Compatibility-only legacy field
+  requiresTrigger?: boolean; // Whether non-paired messages must match the room trigger
   isMain?: boolean; // True for the main control group (no trigger, elevated privileges)
   agentType?: AgentType;
   workDir?: string; // Working directory for the agent (defaults to group folder)