fix(ui): resume lost runs, activity feed fixes, and selector focus

Add resume button for process_lost runs on agent detail page. Fix
activity row text overflow with truncation. Pass entityTitleMap to
Dashboard activity feed. Fix InlineEntitySelector stealing focus on
close when advancing to next field.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/src/components/ActivityRow.tsx

@@ -108,7 +108,7 @@ export function ActivityRow({ event, agentMap, entityNameMap, entityTitleMap, cl
 
   const inner = (
     <div className="flex gap-3">
-      <p className="flex-1 min-w-0">
+      <p className="flex-1 min-w-0 truncate">
         <Identity
           name={actorName}
           size="xs"

ui/src/components/InlineEntitySelector.tsx

@@ -44,6 +44,7 @@ export const InlineEntitySelector = forwardRef<HTMLButtonElement, InlineEntitySe
     const [query, setQuery] = useState("");
     const [highlightedIndex, setHighlightedIndex] = useState(0);
     const inputRef = useRef<HTMLInputElement>(null);
+    const shouldPreventCloseAutoFocusRef = useRef(false);
 
     const allOptions = useMemo<InlineEntityOption[]>(
       () => [{ id: "", label: noneLabel, searchText: noneLabel }, ...options],
@@ -70,6 +71,7 @@ export const InlineEntitySelector = forwardRef<HTMLButtonElement, InlineEntitySe
     const commitSelection = (index: number, moveNext: boolean) => {
       const option = filteredOptions[index] ?? filteredOptions[0];
       if (option) onChange(option.id);
+      shouldPreventCloseAutoFocusRef.current = moveNext;
       setOpen(false);
       setQuery("");
       if (moveNext && onConfirm) {
@@ -109,6 +111,11 @@ export const InlineEntitySelector = forwardRef<HTMLButtonElement, InlineEntitySe
             event.preventDefault();
             inputRef.current?.focus();
           }}
+          onCloseAutoFocus={(event) => {
+            if (!shouldPreventCloseAutoFocusRef.current) return;
+            event.preventDefault();
+            shouldPreventCloseAutoFocusRef.current = false;
+          }}
         >
           <input
             ref={inputRef}