Add daily traffic limits, auto-sort packages, Debrid-Link multi-key improvements

Daily traffic limits:
- Per-provider daily download limit (configurable in GB per provider)
- Per Debrid-Link API key daily limit (individual limits per key)
- Usage tracking with automatic daily reset at midnight
- Provider is skipped when daily limit reached, falls back to next provider
- Reset button per provider and per Debrid-Link key in account settings
- Hoster routing skips daily-limited providers gracefully

Debrid-Link multi-key improvements:
- Keys now display with labels (#1, #2...) and masked tokens in account list
- Option to show detailed per-key view with individual usage stats
- Keys that hit their daily limit are automatically skipped
- providerAccountId/providerAccountLabel stored per download item

Auto-sort packages by progress:
- Active packages automatically sorted to top during downloads
- Sorted by completion ratio, then downloaded bytes
- Toggle in settings (autoSortPackagesByProgress)

UI polish:
- Package column headers: flatter, more transparent design
- LinkSnappy mode label: "Login" renamed to "Web"
- Account list: new toggle for detailed Debrid-Link key display
- Account usage stats section with warning styling

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

src/preload/preload.ts

@@ -3,6 +3,7 @@ import {
   AddLinksPayload,
   AllDebridHostInfo,
   AppSettings,
+  DebridProvider,
   DuplicatePolicy,
   HistoryEntry,
   PackagePriority,
@@ -23,6 +24,8 @@ const api: ElectronApi = {
   installUpdate: () => ipcRenderer.invoke(IPC_CHANNELS.INSTALL_UPDATE),
   openExternal: (url: string): Promise<boolean> => ipcRenderer.invoke(IPC_CHANNELS.OPEN_EXTERNAL, url),
   updateSettings: (settings: Partial<AppSettings>): Promise<AppSettings> => ipcRenderer.invoke(IPC_CHANNELS.UPDATE_SETTINGS, settings),
+  resetProviderDailyUsage: (provider: DebridProvider): Promise<AppSettings> => ipcRenderer.invoke(IPC_CHANNELS.RESET_PROVIDER_DAILY_USAGE, provider),
+  resetDebridLinkApiKeyDailyUsage: (keyId: string): Promise<AppSettings> => ipcRenderer.invoke(IPC_CHANNELS.RESET_DEBRID_LINK_API_KEY_DAILY_USAGE, keyId),
   addLinks: (payload: AddLinksPayload): Promise<{ addedPackages: number; addedLinks: number; invalidCount: number }> =>
     ipcRenderer.invoke(IPC_CHANNELS.ADD_LINKS, payload),
   addContainers: (filePaths: string[]): Promise<{ addedPackages: number; addedLinks: number }> =>