Merge branch 'master' of https://github.com/4gray/iptvnator into claude/server-storage-pwa

# Conflicts:
#	docs/architecture/pwa-self-hosted.md

apps/web-backend/src/app/storage/server-playlist-repository.ts

@@ -6,10 +6,7 @@ import {
     playlistConflictUpdate,
 } from '@iptvnator/shared/database/app-playlist';
 import { appState, playlists } from '@iptvnator/shared/database/schema';
-import type {
-    NewPlaylist,
-    Playlist as PlaylistRow,
-} from '@iptvnator/shared/database/schema';
+import type { Playlist as PlaylistRow } from '@iptvnator/shared/database/schema';
 import { SERVER_PAYLOAD_FIELDS } from '@iptvnator/shared/interfaces';
 import {
     metadataDocument,
@@ -42,46 +39,6 @@ function metadataColumns() {
 
 const metaColumns = metadataColumns();
 
-/**
- * Columns a whole-document upsert must rewrite even when the document no
- * longer has a value: the codec maps empty values to `undefined`, which an
- * `ON CONFLICT DO UPDATE` skips, so a cleared field would keep its old
- * column value and `parseAppPlaylist` would bring it back.
- */
-const REPLACEABLE_COLUMNS = [
-    'serverUrl',
-    'username',
-    'password',
-    'lastUpdated',
-    'userAgent',
-    'origin',
-    'referrer',
-    'filePath',
-    'epgUrls',
-    'detectedEpgUrls',
-    'manualEpgUrls',
-    'disabledEpgUrls',
-    'macAddress',
-    'url',
-    'portalUrl',
-    'count',
-    'importDate',
-    'updateDate',
-    'position',
-    'favorites',
-    'recentlyViewed',
-] as const satisfies readonly (keyof NewPlaylist)[];
-
-function clearedColumns(row: NewPlaylist): Partial<NewPlaylist> {
-    const cleared: Partial<Record<keyof NewPlaylist, null>> = {};
-    for (const column of REPLACEABLE_COLUMNS) {
-        if (row[column] === undefined) {
-            cleared[column] = null;
-        }
-    }
-    return cleared as Partial<NewPlaylist>;
-}
-
 /** Playlist documents in the shared `playlists` table, same rows as desktop. */
 export class ServerPlaylistRepository {
     constructor(private readonly db: DatabaseInstance) {}
@@ -146,10 +103,7 @@ export class ServerPlaylistRepository {
             throw new InvalidPlaylistDocumentError();
         }
 
-        const update = {
-            ...playlistConflictUpdate(row, next),
-            ...clearedColumns(row),
-        };
+        const update = playlistConflictUpdate(row, next);
         this.db.transaction((tx) => {
             tx.insert(playlists)
                 .values(row)