feat: add platform browse history tab updates

src/components/game-shell/PreGameSelectionFlow.tsx

@@ -35,17 +35,16 @@ import {
   readCustomWorldAgentUiState,
   writeCustomWorldAgentUiState,
 } from '../../services/customWorldAgentUiState';
-import {
-  buildAgentDraftFoundationGenerationProgress,
-  buildAgentDraftFoundationSettingText,
-  isDraftFoundationOperation,
-  isDraftFoundationOperationRunning,
-} from '../../services/customWorldAgentGenerationProgress';
 import {
   buildCustomWorldCreatorIntentDisplayText,
   buildCustomWorldCreatorIntentGenerationText,
   createEmptyCustomWorldCreatorIntent,
 } from '../../services/customWorldCreatorIntent';
+import {
+  type PlatformBrowseHistoryEntry,
+  readPlatformBrowseHistory,
+  writePlatformBrowseHistory,
+} from '../../services/platformBrowseHistory';
 import {
   getCustomWorldGalleryDetail,
   listCustomWorldGallery,
@@ -60,6 +59,7 @@ import {
   type CustomWorldProfile,
   type GameState,
 } from '../../types';
+import { useAuthUi } from '../auth/AuthUiContext';
 import { PlatformCreationTypeModal } from './PlatformCreationTypeModal';
 import { type PlatformHomeTab,PlatformHomeView } from './PlatformHomeView';
 import { PlatformWorldDetailView } from './PlatformWorldDetailView';
@@ -101,11 +101,6 @@ export type SelectionStage =
   | 'custom-world-generating'
   | 'custom-world-result';
 
-type CustomWorldGenerationViewSource =
-  | 'classic'
-  | 'agent-draft-foundation'
-  | null;
-
 type PreGameSelectionFlowProps = {
   selectionStage: SelectionStage;
   setSelectionStage: (stage: SelectionStage) => void;
@@ -225,6 +220,7 @@ export function PreGameSelectionFlow({
   handleStartNewGame,
   handleCustomWorldSelect,
 }: PreGameSelectionFlowProps) {
+  const authUi = useAuthUi();
   const initialAgentUiStateRef = useRef(readCustomWorldAgentUiState());
   const hasAppliedInitialAgentWorkspaceRef = useRef(false);
   const [generatedCustomWorldProfile, setGeneratedCustomWorldProfile] =
@@ -235,6 +231,9 @@ export function PreGameSelectionFlow({
   const [publishedGalleryEntries, setPublishedGalleryEntries] = useState<
     CustomWorldGalleryCard[]
   >([]);
+  const [historyEntries, setHistoryEntries] = useState<
+    PlatformBrowseHistoryEntry[]
+  >([]);
   const [platformTab, setPlatformTab] = useState<PlatformHomeTab>('home');
   const [selectedDetailEntry, setSelectedDetailEntry] =
     useState<CustomWorldLibraryEntry<CustomWorldProfile> | null>(null);
@@ -270,10 +269,6 @@ export function PreGameSelectionFlow({
   const [isMutatingDetail, setIsMutatingDetail] = useState(false);
   const [customWorldProgress, setCustomWorldProgress] =
     useState<CustomWorldGenerationProgress | null>(null);
-  const [customWorldGenerationViewSource, setCustomWorldGenerationViewSource] =
-    useState<CustomWorldGenerationViewSource>(null);
-  const [agentDraftGenerationStartedAt, setAgentDraftGenerationStartedAt] =
-    useState<number | null>(null);
   const customWorldAbortControllerRef = useRef<AbortController | null>(null);
 
   const previewCustomWorldCharacters = useMemo(
@@ -335,6 +330,23 @@ export function PreGameSelectionFlow({
     }
   }, [selectedDetailEntry]);
 
+  const appendBrowseHistoryEntry = useCallback(
+    (entry: {
+      ownerUserId: string;
+      profileId: string;
+      worldName: string;
+      subtitle: string;
+      summaryText: string;
+      coverImageSrc: string | null;
+      themeMode: CustomWorldGalleryCard['themeMode'];
+      authorDisplayName: string;
+    }) => {
+      const nextEntries = writePlatformBrowseHistory(authUi?.user, entry);
+      setHistoryEntries(nextEntries);
+    },
+    [authUi?.user],
+  );
+
   useEffect(() => {
     if (hasAppliedInitialAgentWorkspaceRef.current) {
       return;
@@ -363,6 +375,7 @@ export function PreGameSelectionFlow({
         }
         setSavedCustomWorldEntries(libraryEntries);
         setPublishedGalleryEntries(galleryEntries);
+        setHistoryEntries(readPlatformBrowseHistory(authUi?.user));
       } catch (error) {
         if (!isActive) {
           return;
@@ -378,7 +391,7 @@ export function PreGameSelectionFlow({
     return () => {
       isActive = false;
     };
-  }, []);
+  }, [authUi?.user]);
 
   useEffect(() => {
     if (
@@ -527,40 +540,10 @@ export function PreGameSelectionFlow({
     return customWorldCreatorIntent.rawSettingText.trim();
   }, [customWorldCreatorIntent]);
 
-  const agentDraftSettingPreview = useMemo(
-    () => buildAgentDraftFoundationSettingText(agentSession),
-    [agentSession],
-  );
-
-  const agentDraftGenerationProgress = useMemo(
-    () =>
-      buildAgentDraftFoundationGenerationProgress(
-        agentOperation,
-        agentDraftGenerationStartedAt,
-      ),
-    [agentDraftGenerationStartedAt, agentOperation],
-  );
-
-  const isAgentDraftGenerationView =
-    customWorldGenerationViewSource === 'agent-draft-foundation';
-  const activeGenerationProgress = isAgentDraftGenerationView
-    ? agentDraftGenerationProgress
-    : customWorldProgress;
-  const isActiveGenerationRunning = isAgentDraftGenerationView
-    ? isDraftFoundationOperationRunning(agentOperation)
-    : isGeneratingCustomWorld;
-  const activeGenerationError =
-    isAgentDraftGenerationView &&
-    isDraftFoundationOperation(agentOperation) &&
-    agentOperation.status === 'failed'
-      ? agentOperation.error || agentOperation.phaseDetail
-      : customWorldError;
-
   const leaveCustomWorldResult = () => {
     setGeneratedCustomWorldProfile(null);
     setCustomWorldError(null);
     setCustomWorldProgress(null);
-    setCustomWorldGenerationViewSource(null);
     setSelectionStage(selectedDetailEntry ? 'detail' : 'platform');
   };
 
@@ -571,7 +554,6 @@ export function PreGameSelectionFlow({
 
     setCustomWorldError(null);
     setCustomWorldProgress(null);
-    setCustomWorldGenerationViewSource(null);
     setSelectionStage('platform');
   };
 
@@ -717,6 +699,16 @@ export function PreGameSelectionFlow({
   const openLibraryDetail = (
     entry: CustomWorldLibraryEntry<CustomWorldProfile>,
   ) => {
+    appendBrowseHistoryEntry({
+      ownerUserId: entry.ownerUserId,
+      profileId: entry.profileId,
+      worldName: entry.worldName,
+      subtitle: entry.subtitle,
+      summaryText: entry.summaryText,
+      coverImageSrc: entry.coverImageSrc,
+      themeMode: entry.themeMode,
+      authorDisplayName: entry.authorDisplayName,
+    });
     setSelectedDetailEntry(entry);
     setDetailError(null);
     setSelectionStage('detail');
@@ -731,6 +723,16 @@ export function PreGameSelectionFlow({
         entry.ownerUserId,
         entry.profileId,
       );
+      appendBrowseHistoryEntry({
+        ownerUserId: detailEntry.ownerUserId,
+        profileId: detailEntry.profileId,
+        worldName: detailEntry.worldName,
+        subtitle: detailEntry.subtitle,
+        summaryText: detailEntry.summaryText,
+        coverImageSrc: detailEntry.coverImageSrc,
+        themeMode: detailEntry.themeMode,
+        authorDisplayName: detailEntry.authorDisplayName,
+      });
       setSelectedDetailEntry(detailEntry);
     } catch (error) {
       setSelectedDetailEntry(null);
@@ -1039,6 +1041,7 @@ export function PreGameSelectionFlow({
               featuredEntries={featuredGalleryEntries}
               latestEntries={publishedGalleryEntries}
               myEntries={savedCustomWorldEntries}
+              historyEntries={historyEntries}
               isLoadingPlatform={isLoadingPlatform}
               platformError={
                 isLoadingPlatform ? null : (platformError ?? creationTypeError)