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/infrastructure/uploads.py

@@ -0,0 +1,36 @@
+"""Helpers para subidas temporales desde la app desktop."""
+from __future__ import annotations
+
+import os
+import tempfile
+from contextlib import contextmanager
+from typing import Iterator
+
+from fastapi import UploadFile
+
+
+@contextmanager
+def temp_upload_path(upload: UploadFile, *, suffix: str | None = None) -> Iterator[str]:
+  """Guarda un UploadFile en disco temporal y lo elimina al salir."""
+  ext = suffix
+  if ext is None and upload.filename:
+    _, ext = os.path.splitext(upload.filename)
+  if not ext:
+    ext = ".bin"
+
+  fd, path = tempfile.mkstemp(suffix=ext)
+  os.close(fd)
+  try:
+    upload.file.seek(0)
+    with open(path, "wb") as handle:
+      while True:
+        chunk = upload.file.read(1024 * 1024)
+        if not chunk:
+          break
+        handle.write(chunk)
+    yield path
+  finally:
+    try:
+      os.unlink(path)
+    except OSError:
+      pass