fix(web): address skill row review feedback

packages/host/apiproxy/src/api/sessions.ts

@@ -26,14 +26,26 @@ declare module '@deepseek-ai/dsh-llm' {
   }
 }
 
+/** Paired tool/call metadata carried beside a paged result whose call may be outside the page. */
+export interface HistoryToolCall {
+  /** Registered tool name used for keyed presentation dispatch. */
+  name: string
+  /** Exact durable arguments JSON from the paired tool/call. */
+  arguments: string
+  /** Unix epoch ms of the paired tool/call event. */
+  time: number
+}
+
 /**
- * One history page entry: the raw event plus the optional host-computed render
- * intent (same semantics as the mux frame's `view` slot — a pagination-time
- * derivation, never persisted).
+ * One history page entry: the raw event plus optional host-computed render
+ * intent and result pairing. Both annotations are pagination-time derivations,
+ * never persisted; `call` preserves a tool/result's identity when its call
+ * event lies outside this page.
  */
 export interface HistoryEntry {
   event: SessionEvent
   view?: ToolEventView
+  call?: HistoryToolCall
 }
 
 /**