Update CLI chat session bridge (#697)

* feat: add CLI chat sessions with Python agent bridge

Introduce a new CLI chat mode that connects Web UI directly to Hermes
Agent's AIAgent via a Python bridge subprocess and Socket.IO, bypassing
the API Server /v1/responses path. Supports streaming, slash commands
(/new, /undo, /retry, /branch, /compress, /save, /title), interrupt,
and steer.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* feat: update CLI chat session bridge

* fix: extend agent bridge startup timeouts

* docs: update bridge chat session design

* feat: align bridge compression and provider registry

* chore: bump version to 0.5.20

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

packages/client/src/components/hermes/chat/MessageList.vue

@@ -26,10 +26,6 @@ function formatToolDuration(seconds: number): string {
   return `${mins}m ${secs}s`
 }
 
-const displayMessages = computed(() =>
-  chatStore.messages.filter((m) => m.role !== "tool"),
-);
-
 const currentToolCalls = computed(() => {
   const msgs = chatStore.messages;
   // Find the last user message index
@@ -45,6 +41,22 @@ const currentToolCalls = computed(() => {
   return [...tools].reverse();
 });
 
+const displayMessages = computed(() =>
+  chatStore.messages.filter((m) => {
+    if (m.role === "tool") return false;
+    if (
+      m.role === "assistant" &&
+      m.isStreaming &&
+      !m.content?.trim() &&
+      !!m.reasoning?.trim() &&
+      currentToolCalls.value.length === 0
+    ) {
+      return false;
+    }
+    return true;
+  }),
+);
+
 const queuedMessages = computed(() => {
   const sid = chatStore.activeSessionId;
   if (!sid) return [];