Enhanced logging & error handling for auth and pg backups

- Add detailed debug/warning logs to authentication flows (AuthService, AuthorizationContext, WebSocketManager) for better traceability of auth attempts and failures.
- Log WebSocket authentication attempts, including IP, path, and token preview.
- Introduce PostgresVersionMismatchException for pg_dump/pg_restore version mismatches; parse and log server/client versions, clean up failed backups, and provide upgrade guidance.
- Add helper for parsing version mismatch errors.
- Update using directives and minor code cleanups.
- Update .csproj.user with new publish profile path.

src/Jellyfin.Database/Jellyfin.Database.Providers.Postgres/PostgresDatabaseProvider.cs

@@ -18,6 +18,7 @@ using Jellyfin.Database.Implementations;
 using Jellyfin.Database.Implementations.DbConfiguration;
 using Jellyfin.Database.Implementations.Entities;
 using Jellyfin.Database.Implementations.Entities.Security;
+using Jellyfin.Database.Providers.Postgres.Exceptions;
 using MediaBrowser.Common.Configuration;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
@@ -715,6 +716,17 @@ public sealed class PostgresDatabaseProvider : IJellyfinDatabaseProvider
                 logger.LogInformation("PostgreSQL local backup created: {BackupPath}", backupPath);
                 return Path.GetFileName(backupPath);
             }
+            catch (PostgresVersionMismatchException versionEx)
+            {
+                logger.LogError(
+                    versionEx,
+                    "PostgreSQL version mismatch: Server version {ServerVersion} is incompatible with pg_dump version {ClientVersion}. " +
+                    "Please upgrade your PostgreSQL client tools (pg_dump/pg_restore) to match or exceed the server version. " +
+                    "You can install the latest PostgreSQL client tools from: https://www.postgresql.org/download/",
+                    versionEx.ServerVersion,
+                    versionEx.ClientVersion);
+                throw;
+            }
             catch (Exception ex)
             {
                 logger.LogError(ex, "Failed to create local PostgreSQL backup using pg_dump");