## Summary - add durable archive, restore, and archived-only hard deletion with live-room, job, research, navigation, and lifecycle fencing - add read-only archived document access, archived list/search controls, management menus, terminal deletion handling, and MCP archive/restore tools - add storage, route, protocol, editor, browser, PostgreSQL, and lifecycle coverage plus updated documentation

## Verification - `bun run ci` - `bun run types` - `bun test` (1191 passed, 2 skipped) - fresh PostgreSQL contract suite (48 passed) - `bun run build` - `bun run e2e` (189 passed) - focused document navigation and Research Workspace E2E after final cache hardening (14 passed)