perf: diagnoistics improvements

electron/preload.ts

@@ -259,6 +259,14 @@ export interface ElectronAPI {
     type: string;
     payload: Record<string, unknown>;
   }) => Promise<boolean>;
+  getPendingHighMemoryAlert: () => Promise<{
+    logFilePath: string;
+    detectedAt: number;
+    peakWorkingSetKb: number;
+    sessionId: string;
+  } | null>;
+  acknowledgeHighMemoryAlert: () => Promise<boolean>;
+  showLogFileInFolder: (filePath: string) => Promise<{ shown: boolean; reason?: string }>;
   getAppDataPath: () => Promise<string>;
   openCurrentDataFolder: () => Promise<boolean>;
   exportUserData: () => Promise<ExportUserDataResult>;
@@ -400,6 +408,9 @@ const electronAPI: ElectronAPI = {
   getAppMetrics: () => ipcRenderer.invoke('get-app-metrics'),
   isPerfDiagEnabled: () => ipcRenderer.invoke('perf-diag-is-enabled'),
   reportPerfDiagSample: (entry) => ipcRenderer.invoke('perf-diag-report', entry),
+  getPendingHighMemoryAlert: () => ipcRenderer.invoke('get-pending-high-memory-alert'),
+  acknowledgeHighMemoryAlert: () => ipcRenderer.invoke('acknowledge-high-memory-alert'),
+  showLogFileInFolder: (filePath) => ipcRenderer.invoke('show-log-file-in-folder', filePath),
   getAppDataPath: () => ipcRenderer.invoke('get-app-data-path'),
   openCurrentDataFolder: () => ipcRenderer.invoke('open-current-data-folder'),
   exportUserData: () => ipcRenderer.invoke('export-user-data'),