feat(chat/activity): Self-improvement event badges for memory & skill updates (#744)

* feat(chat/activity): Self-improvement event badges for memory & skill updates (#737)

* feat(chat): Handle background review.summary WS events for self-improvement notices

---------

Co-authored-by: M57 <hy4ri@users.noreply.github.com>

app/src/main/java/com/m57/hermescontrol/data/ws/EventParser.kt

@@ -149,6 +149,11 @@ object EventParser {
                 WsEvent.BackgroundComplete(payload)
             }
 
+            "review.summary" -> {
+                val text = (payload?.get("text") as? String)?.trim() ?: ""
+                WsEvent.ReviewSummary(text, sessionId)
+            }
+
             "session.updated" -> {
                 WsEvent.SessionUpdated(payload)
             }

app/src/main/java/com/m57/hermescontrol/data/ws/WsEvent.kt

@@ -123,6 +123,16 @@ sealed class WsEvent {
         val sessionId: String? = null,
     ) : WsEvent()
 
+    /**
+     * Self-improvement background review summary event.
+     * Emitted when background review patches a skill or saves a memory.
+     * Payload: `{ text: "💾 Self-improvement review: ..." }`
+     */
+    data class ReviewSummary(
+        val text: String,
+        val sessionId: String? = null,
+    ) : WsEvent()
+
     // ── Status ───────────────────────────────────────────────────────────
 
     data class StatusUpdate(