Add missing pathing information to frontend

frontend/src/hooks/useAirtimeTracking.ts

@@ -100,7 +100,7 @@ function createLocalMessage(conversationKey: string, text: string, outgoing: boo
     text,
     sender_timestamp: now,
     received_at: now,
-    path_len: null,
+    path: null,
     txt_type: 0,
     signature: null,
     outgoing,

frontend/src/hooks/useRepeaterMode.ts

@@ -99,7 +99,7 @@ function createLocalMessage(
     text,
     sender_timestamp: now,
     received_at: now,
-    path_len: null,
+    path: null,
     txt_type: 0,
     signature: null,
     outgoing,

frontend/src/test/integration.test.ts

@@ -268,7 +268,7 @@ describe('Integration: ACK Events', () => {
       text: 'Hello',
       sender_timestamp: 1700000000,
       received_at: 1700000000,
-      path_len: null,
+      path: null,
       txt_type: 0,
       signature: null,
       outgoing: true,
@@ -301,7 +301,7 @@ describe('Integration: ACK Events', () => {
       text: 'Hello',
       sender_timestamp: 1700000000,
       received_at: 1700000000,
-      path_len: null,
+      path: null,
       txt_type: 0,
       signature: null,
       outgoing: true,

frontend/src/test/unreadCounts.test.ts

@@ -72,7 +72,7 @@ describe('shouldIncrementUnread', () => {
     text: 'Test',
     sender_timestamp: null,
     received_at: Date.now(),
-    path_len: null,
+    path: null,
     txt_type: 0,
     signature: null,
     outgoing: false,

frontend/src/test/useConversationMessages.test.ts

@@ -16,7 +16,7 @@ function createMessage(overrides: Partial<Message> = {}): Message {
     text: 'Hello world',
     sender_timestamp: 1700000000,
     received_at: 1700000001,
-    path_len: null,
+    path: null,
     txt_type: 0,
     signature: null,
     outgoing: false,

frontend/src/types.ts

@@ -82,7 +82,8 @@ export interface Message {
   text: string;
   sender_timestamp: number | null;
   received_at: number;
-  path_len: number | null;
+  /** Hex-encoded routing path (2 chars per hop). Null for outgoing messages. */
+  path: string | null;
   txt_type: number;
   signature: string | null;
   outgoing: boolean;