feat: Add .env.example configuration file and integrate Redis service into Docker Compose for improved task management. Update desktop application to support document indexing and extraction workflows, enhancing user experience with a new extraction wizard and stepper components. Revise README and documentation for clarity on setup and usage.

services/extraction/README.md

@@ -37,7 +37,9 @@ en `dependencies/poppler-24.08.0/Library/bin`.
 - `GET /config`
 - `GET /models`
 - `POST /schemas`
+- `POST /schemas/upload`
 - `POST /estimate`
 - `POST /batches`
-- `GET /batches/{batch_id}`
-- `GET /batches/{batch_id}/rows`
+- `POST /tasks/extraction`
+- `POST /tasks/{task_id}/ingest`
+- `GET /tasks`