feat: message when stream get correctly resumed (#4988)

<img width="366" height="109" alt="Screenshot 2025-10-09 at 17 44 16"
src="https://github.com/user-attachments/assets/26bc6f60-11bc-4fc6-a1cc-430ca1203969"
/>

codex-rs/protocol/src/protocol.rs

@@ -1203,6 +1203,11 @@ pub struct StreamErrorEvent {
     pub message: String,
 }
 
+#[derive(Debug, Clone, Deserialize, Serialize, TS)]
+pub struct StreamInfoEvent {
+    pub message: String,
+}
+
 #[derive(Debug, Clone, Deserialize, Serialize, TS)]
 pub struct PatchApplyBeginEvent {
     /// Identifier so this can be paired with the PatchApplyEnd event.