multi: add node omission list for blinded paths

lnrpc/invoicesrpc/invoices.swagger.json

@@ -412,6 +412,14 @@
           "type": "integer",
           "format": "int64",
           "description": "The maximum number of blinded paths to select and add to an invoice."
+        },
+        "node_omission_list": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "format": "byte"
+          },
+          "description": "A list of node IDs of nodes that should not be used in any of our generated\nblinded paths."
         }
       }
     },

lnrpc/lightning.proto

@@ -3867,6 +3867,12 @@ message BlindedPathConfig {
     The maximum number of blinded paths to select and add to an invoice.
     */
     optional uint32 max_num_paths = 3;
+
+    /*
+    A list of node IDs of nodes that should not be used in any of our generated
+    blinded paths.
+    */
+    repeated bytes node_omission_list = 4;
 }
 
 enum InvoiceHTLCState {

lnrpc/lightning.swagger.json

@@ -3561,6 +3561,14 @@
           "type": "integer",
           "format": "int64",
           "description": "The maximum number of blinded paths to select and add to an invoice."
+        },
+        "node_omission_list": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "format": "byte"
+          },
+          "description": "A list of node IDs of nodes that should not be used in any of our generated\nblinded paths."
         }
       }
     },