add /client endpoint to download fpaste CLI

app/api/routes.py

@@ -245,6 +245,21 @@ def _get_client_id() -> str | None:
     return None
 
 
+@bp.route("/client", methods=["GET"])
+def client():
+    """Download the fpaste CLI client."""
+    import os
+    client_path = os.path.join(current_app.root_path, "..", "fpaste")
+    try:
+        with open(client_path, "r") as f:
+            content = f.read()
+        response = Response(content, mimetype="text/x-python")
+        response.headers["Content-Disposition"] = "attachment; filename=fpaste"
+        return response
+    except FileNotFoundError:
+        return _json_response({"error": "Client not available"}, 404)
+
+
 @bp.route("/health", methods=["GET"])
 def health():
     """Health check endpoint for load balancers and monitoring."""
@@ -288,6 +303,7 @@ def index():
             "endpoints": {
                 f"GET {_url('/')}": "API information",
                 f"GET {_url('/health')}": "Health check",
+                f"GET {_url('/client')}": "Download CLI client",
                 f"GET {_url('/challenge')}": "Get PoW challenge",
                 f"POST {_url('/')}": "Create paste",
                 f"GET {_url('/<id>')}": "Retrieve paste metadata",