fix(transport): chat_hist_resp dispatch skipped when older pending entries exist

chat_hist_resp checked only the single oldest pending entry across all
types. When switching tabs, keyed requests (media_meta_req, file_req)
from Videos/Music/Photos stayed in _pending and were older than the
chat_hist entry, so the response was dropped and the chat appeared empty
on return. Now scans for the first chat_hist entry instead. Same fix
applied to index_sync dispatch for consistency.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 11 insertions, 8 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/transport.js b/packages/meshbay-hub/src/meshbay_hub/static/transport.js
index 1a146ce..120c7d7 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/transport.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/transport.js
@@ -2121,9 +2121,11 @@ class MeshBayTransport {
 
     if (msg.type === 'index_sync' && msg.entries) {
       if (this._onIndexSync) this._onIndexSync(msg);
-      const oldest = this._pending.entries().next();
-      if (!oldest.done && oldest.value[1]._reqType === 'index_sync') {
-        oldest.value[1].resolve(msg);
+      for (const [, handler] of this._pending) {
+        if (handler._reqType === 'index_sync') {
+          handler.resolve(msg);
+          break;
+        }
       }
       return;
     }
@@ -2251,12 +2253,13 @@ class MeshBayTransport {
     // what depending on response arrival order rather than on request type
     // predicts: it fires only when the two responses happen to reorder.
     if (msg.type === 'chat_hist_resp') {
-      const oldest = this._pending.entries().next();
-      if (!oldest.done && oldest.value[1]._reqType === 'chat_hist') {
-        oldest.value[1].resolve(msg);
-      } else {
-        console.warn('[MeshBay] chat_hist_resp with no matching chat_hist pending');
+      for (const [, handler] of this._pending) {
+        if (handler._reqType === 'chat_hist') {
+          handler.resolve(msg);
+          return;
+        }
       }
+      console.warn('[MeshBay] chat_hist_resp with no matching chat_hist pending');
       return;
     }