00466a9801
Introduces a manifest contract so feature containers self-describe their settings (JSON Schema + access rules). Backend and frontend gain generic plugin proxy and dynamic Extensions UI with zero feature-specific code. Doc-service is the first plugin consumer: exposes /plugin/manifest and /plugin/settings, adds a watchdog-based file watcher that auto-ingests PDFs from a mounted directory, maps subfolders to categories, supports AI-suggested folder/filename (user-confirmed), and enforces a no-remove policy. Access is gated by is_superuser or doc-service-admin group. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>