feat: organizer Android app and token-gated upload API

Replace Syncthing as the product upload path with a share-target app
and POST /api/jobs. Web UI live-polls job progress.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/pipeline.py

@@ -396,6 +396,8 @@ def read_status(job_id: str) -> dict[str, Any] | None:
         return None
     return {
         "status": data.get("status", "unknown"),
+        "stage": data.get("stage"),
+        "progress": data.get("progress"),
         "created_at": data.get("created_at"),
         "updated_at": data.get("updated_at"),
         "error": data.get("error"),
@@ -628,7 +630,15 @@ def process_job(
     paths.intermediates.mkdir(parents=True, exist_ok=True)
     paths.meta.parent.mkdir(parents=True, exist_ok=True)
 
-    write_status(paths, "processing", source_file=str(source_path.name), source_stem=stem)
+    write_status(
+        paths,
+        "processing",
+        source_file=str(source_path.name),
+        source_stem=stem,
+        stage="preprocess",
+        progress={"current": 0, "total": config.OUTPUT_COUNT},
+        error=None,
+    )
 
     try:
         paths = preprocess_original(paths)
@@ -643,6 +653,12 @@ def process_job(
         }
         write_manifest(paths, manifest)
 
+        write_status(
+            paths,
+            "processing",
+            stage="rembg",
+            progress={"current": 0, "total": config.OUTPUT_COUNT},
+        )
         ok, err = run_rembg(paths.original, paths.rembg)
         if not ok:
             raise PipelineError(f"rembg fehlgeschlagen: {err}")
@@ -654,6 +670,12 @@ def process_job(
 
         for i in range(1, config.OUTPUT_COUNT + 1):
             variant_id = f"v{i}"
+            write_status(
+                paths,
+                "processing",
+                stage="variant",
+                progress={"current": i, "total": config.OUTPUT_COUNT},
+            )
             try:
                 entry = compose_variant(
                     paths,
@@ -700,10 +722,17 @@ def process_job(
         if not manifest["variants"]:
             raise PipelineError("Keine Variante erfolgreich erzeugt: " + "; ".join(variant_errors))
 
-        write_status(paths, "done", variant_errors=variant_errors)
+        done_count = len(manifest["variants"])
+        write_status(
+            paths,
+            "done",
+            stage="done",
+            progress={"current": done_count, "total": config.OUTPUT_COUNT},
+            variant_errors=variant_errors,
+        )
     except PipelineError as exc:
         logger.error("[%s] job failed: %s", stem, exc)
-        write_status(paths, "error", error=str(exc))
+        write_status(paths, "error", stage="error", error=str(exc))
     except Exception as exc:  # noqa: BLE001 - keep the worker loop alive
         logger.exception("[%s] unexpected error", stem)
-        write_status(paths, "error", error=f"Unerwarteter Fehler: {exc}")
+        write_status(paths, "error", stage="error", error=f"Unerwarteter Fehler: {exc}")