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/shared/ipc.ts

@@ -9,6 +9,8 @@ export const IPC_CHANNELS = {
   updateAgent: "agentcompany:update-agent",
   updateEmployeeProfile: "agentcompany:update-employee-profile",
   setAutonomousPaused: "agentcompany:set-autonomous-paused",
+  setIntegrationKey: "agentcompany:set-integration-key",
+  clearIntegrationKey: "agentcompany:clear-integration-key",
   createTask: "agentcompany:create-task",
   updateTask: "agentcompany:update-task",
   deleteTask: "agentcompany:delete-task",