Fix download freeze spikes and unrestrict slot overshoot handling

src/shared/ipc.ts

@@ -33,5 +33,8 @@ export const IPC_CHANNELS = {
   IMPORT_BACKUP: "app:import-backup",
   OPEN_LOG: "app:open-log",
   RETRY_EXTRACTION: "queue:retry-extraction",
-  EXTRACT_NOW: "queue:extract-now"
+  EXTRACT_NOW: "queue:extract-now",
+  GET_HISTORY: "history:get",
+  CLEAR_HISTORY: "history:clear",
+  REMOVE_HISTORY_ENTRY: "history:remove-entry"
 } as const;

src/shared/preload-api.ts

@@ -2,6 +2,7 @@ import type {
   AddLinksPayload,
   AppSettings,
   DuplicatePolicy,
+  HistoryEntry,
   SessionStats,
   StartConflictEntry,
   StartConflictResolutionResult,
@@ -44,6 +45,9 @@ export interface ElectronApi {
   openLog: () => Promise<void>;
   retryExtraction: (packageId: string) => Promise<void>;
   extractNow: (packageId: string) => Promise<void>;
+  getHistory: () => Promise<HistoryEntry[]>;
+  clearHistory: () => Promise<void>;
+  removeHistoryEntry: (entryId: string) => Promise<void>;
   onStateUpdate: (callback: (snapshot: UiSnapshot) => void) => () => void;
   onClipboardDetected: (callback: (links: string[]) => void) => () => void;
   onUpdateInstallProgress: (callback: (progress: UpdateInstallProgress) => void) => () => void;

src/shared/types.ts

@@ -255,3 +255,21 @@ export interface SessionStats {
   activeDownloads: number;
   queuedDownloads: number;
 }
+
+export interface HistoryEntry {
+  id: string;
+  name: string;
+  totalBytes: number;
+  downloadedBytes: number;
+  fileCount: number;
+  provider: DebridProvider | null;
+  completedAt: number;
+  durationSeconds: number;
+  status: "completed" | "deleted";
+  outputDir: string;
+}
+
+export interface HistoryState {
+  entries: HistoryEntry[];
+  maxEntries: number;
+}