Add DDownload provider, post-processing status labels, and update changelog

- DDownload (ddownload.com/ddl.to) as new hoster with web login
- Post-processing labels: Entpacken/Renaming/Aufräumen/MKVs
- Release notes shown in update confirmation dialog

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

src/shared/types.ts

@@ -14,7 +14,7 @@ export type CleanupMode = "none" | "trash" | "delete";
 export type ConflictMode = "overwrite" | "skip" | "rename" | "ask";
 export type SpeedMode = "global" | "per_download";
 export type FinishedCleanupPolicy = "never" | "immediate" | "on_start" | "package_done";
-export type DebridProvider = "realdebrid" | "megadebrid" | "bestdebrid" | "alldebrid";
+export type DebridProvider = "realdebrid" | "megadebrid" | "bestdebrid" | "alldebrid" | "ddownload";
 export type DebridFallbackProvider = DebridProvider | "none";
 export type AppTheme = "dark" | "light";
 export type PackagePriority = "high" | "normal" | "low";
@@ -42,6 +42,8 @@ export interface AppSettings {
   megaPassword: string;
   bestToken: string;
   allDebridToken: string;
+  ddownloadLogin: string;
+  ddownloadPassword: string;
   archivePasswordList: string;
   rememberToken: boolean;
   providerPrimary: DebridProvider;
@@ -119,6 +121,7 @@ export interface PackageEntry {
   cancelled: boolean;
   enabled: boolean;
   priority: PackagePriority;
+  postProcessLabel?: string;
   createdAt: number;
   updatedAt: number;
 }
@@ -219,6 +222,7 @@ export interface UpdateCheckResult {
   setupAssetUrl?: string;
   setupAssetName?: string;
   setupAssetDigest?: string;
+  releaseNotes?: string;
   error?: string;
 }