Adds mute and unmute agent APIs

Adds RPC endpoints to mute and unmute agents, enabling control
over agent communication within the system. The new APIs allow
for muting and unmuting based on the partner agent ID.

Author: Braden Olsen

tcnapi/exile/gate/v2/public.proto

@@ -318,6 +318,19 @@ service GateService {
       body: "*"
     };
   }
+  rpc MuteAgent(MuteAgentRequest) returns (MuteAgentResponse) {
+    option (google.api.http) = {
+      post: "/tcnapi/exile/gate/v2/agents/{partner_agent_id}/mute"
+      body: "*"
+    };
+  }
+  
+  rpc UnmuteAgent(UnmuteAgentRequest) returns (UnmuteAgentResponse) {
+    option (google.api.http) = {
+      post: "/tcnapi/exile/gate/v2/agents/{partner_agent_id}/unmute"
+      body: "*"
+    };
+  }
 }
 
 // TimeRange represents an inclusive time interval for filtering logs.
@@ -1468,3 +1481,13 @@ message AddRecordToJourneyBufferResponse {
     REJECTED = 3;
   }
 }
+
+message MuteAgentRequest {
+  string partner_agent_id = 1;
+}
+message MuteAgentResponse {}
+
+message UnmuteAgentRequest {
+  string partner_agent_id = 1;
+}
+message UnmuteAgentResponse {}