option to keep all activities private from strava zip, fix copy of register link

bincio/serve/server.py

@@ -590,6 +590,7 @@ async def upload_activity(
 @app.post("/api/upload/strava-zip")
 async def upload_strava_zip(
     file: UploadFile = File(...),
+    private: str = Form(default="false"),
     bincio_session: Optional[str] = Cookie(default=None),
 ) -> StreamingResponse:
     """Accept a Strava bulk export ZIP and stream SSE progress while processing.
@@ -601,6 +602,8 @@ async def upload_strava_zip(
     if not file.filename or not file.filename.lower().endswith(".zip"):
         raise HTTPException(400, "Please upload a .zip file")
 
+    privacy = "private" if private.lower() in ("true", "1", "yes") else "public"
+
     dd = _get_data_dir() / user.handle
     import tempfile
     tmp = tempfile.NamedTemporaryFile(suffix=".zip", delete=False, dir=dd)
@@ -617,7 +620,7 @@ async def upload_strava_zip(
     def event_stream():
         any_imported = False
         try:
-            for event in strava_zip_iter(zip_path, dd):
+            for event in strava_zip_iter(zip_path, dd, privacy=privacy):
                 yield f"data: {json.dumps(event)}\n\n"
                 if event.get("type") == "progress" and event.get("status") == "imported":
                     any_imported = True