Add document, knowledge, and automation subsystems

Migration 040 creates documents, knowledge_entries, and automation_rules
tables. Full-stack services (DocumentService, KnowledgeService,
AutomationService), IPC handlers, preload bridge, desktop-api types,
and domain records wired into the snapshot. UI pages follow next.

AgentCompany-New/src/shared/ipc.ts

@@ -60,6 +60,14 @@ export const IPC_CHANNELS = {
   createGoal: "agentcompany:create-goal",
   createProject: "agentcompany:create-project",
   createWorkspace: "agentcompany:create-workspace",
+  createDocument: "agentcompany:create-document",
+  updateDocument: "agentcompany:update-document",
+  deleteDocument: "agentcompany:delete-document",
+  createKnowledgeEntry: "agentcompany:create-knowledge-entry",
+  deleteKnowledgeEntry: "agentcompany:delete-knowledge-entry",
+  createAutomationRule: "agentcompany:create-automation-rule",
+  updateAutomationRule: "agentcompany:update-automation-rule",
+  deleteAutomationRule: "agentcompany:delete-automation-rule",
   search: "agentcompany:search",
   rendererEvent: "agentcompany:renderer-event",
   windowMinimize: "agentcompany:window-minimize",