Move Composio, logo.dev and Antigravity keys into Settings

The three third-party keys were hardcoded or read from the environment.
Operators now enter them in Settings > Integrations; they are stored
encrypted in the app-wide integration_keys table (migration 058).
An agent holding connector grants fails loudly when no Composio key is
saved. The goal-review test no longer depends on absolute dates.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/preload/index.ts

@@ -17,6 +17,8 @@ const api: DesktopApi = {
   updateAgent: (input) => invoke(IPC_CHANNELS.updateAgent, input),
   updateEmployeeProfile: (input) => invoke(IPC_CHANNELS.updateEmployeeProfile, input),
   setAutonomousPaused: (input) => invoke(IPC_CHANNELS.setAutonomousPaused, input),
+  setIntegrationKey: (input) => invoke(IPC_CHANNELS.setIntegrationKey, input),
+  clearIntegrationKey: (input) => invoke(IPC_CHANNELS.clearIntegrationKey, input),
   createTask: (input) => invoke(IPC_CHANNELS.createTask, input),
   updateTask: (input) => invoke(IPC_CHANNELS.updateTask, input),
   deleteTask: (input) => invoke(IPC_CHANNELS.deleteTask, input),