Add LINE channel adapter with webhook ingress and gating

src/gateway/handlers/services.test.ts

@@ -35,6 +35,7 @@ function makeBaseConfig(): Config {
     teams: undefined,
     google_chat: undefined,
     bluebubbles: undefined,
+    line: undefined,
   } as unknown as Config;
 }
 
@@ -53,6 +54,7 @@ describe('discoverServices', () => {
       expect.objectContaining({ name: 'teams', status: 'not_configured' }),
       expect.objectContaining({ name: 'google_chat', status: 'not_configured' }),
       expect.objectContaining({ name: 'bluebubbles', status: 'not_configured' }),
+      expect.objectContaining({ name: 'line', status: 'not_configured' }),
       expect.objectContaining({ name: 'cron', status: 'not_configured' }),
       expect.objectContaining({ name: 'mcp', status: 'not_configured' }),
       expect.objectContaining({ name: 'web_search', status: 'configured' }),

src/gateway/handlers/services.ts

@@ -58,6 +58,7 @@ export function discoverServices(
     { key: 'teams', name: 'teams', description: 'Microsoft Teams bot' },
     { key: 'google_chat', name: 'google_chat', description: 'Google Chat bot' },
     { key: 'bluebubbles', name: 'bluebubbles', description: 'iMessage via BlueBubbles' },
+    { key: 'line', name: 'line', description: 'LINE Messaging API bot' },
   ];
 
   for (const { key, name, description } of channelConfigs) {