fix(toolsets): add missing 'messaging' toolset definition

send_message_tool registers under toolset='messaging' but no
'messaging' entry existed in TOOLSETS. This meant --disable-toolset
messaging and --enable-toolset messaging silently failed, and the
hermes tools config UI couldn't toggle the messaging tools.

agent/context_compressor.py

@@ -313,19 +313,7 @@ Write only the summary body. Do not include any preamble or prefix; the system w
 
         if summary:
             last_head_role = messages[compress_start - 1].get("role", "user") if compress_start > 0 else "user"
-            first_tail_role = messages[compress_end].get("role", "user") if compress_end < n_messages else "user"
-            # Pick a role that avoids consecutive same-role with both neighbors.
-            # Priority: avoid colliding with head (already committed), then tail.
-            if last_head_role in ("assistant", "tool"):
-                summary_role = "user"
-            else:
-                summary_role = "assistant"
-            # If the chosen role collides with the tail AND flipping wouldn't
-            # collide with the head, flip it.
-            if summary_role == first_tail_role:
-                flipped = "assistant" if summary_role == "user" else "user"
-                if flipped != last_head_role:
-                    summary_role = flipped
+            summary_role = "user" if last_head_role in ("assistant", "tool") else "assistant"
             compressed.append({"role": summary_role, "content": summary})
         else:
             if not self.quiet_mode:

toolsets.py

@@ -130,6 +130,12 @@ TOOLSETS = {
         "includes": []
     },
     
+    "messaging": {
+        "description": "Cross-platform messaging: send messages to Telegram, Discord, Slack, SMS, etc.",
+        "tools": ["send_message"],
+        "includes": []
+    },
+    
     "rl": {
         "description": "RL training tools for running reinforcement learning on Tinker-Atropos",
         "tools": [