Serveur réécrit en Rust

Le serveur Dart (bin/) est remplacé par un serveur Rust (server/) :
tokio + axum, reqwest/rustls, SQLite embarqué via rusqlite. Même API,
mêmes routes et mêmes réponses : le front Flutter ne change pas.

La base de production est reprise telle quelle : schéma, migrations et
formats de dates (DateTime.toIso8601String de Dart) sont reproduits à
l'identique, les sessions et hachages existants restent valides.

Comportement conservé : cascade de routage, anti-SSRF, logs masqués,
rate limits, transcodage HLS/turbo.ts avec repli GPU, quotas fournisseur,
enregistrements (reprise, relances, fusion), season passes, EPG, logos de
repli, arrêt gracieux sur SIGTERM. Tests Dart portés (132 tests Rust) ;
la CI exécute fmt, test et clippy -D warnings, l'image Docker compile le
serveur dans un étage rust:1.98.1.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

bin/models/recording.dart

@@ -1,100 +0,0 @@
-import 'dart:convert';
-
-class Recording {
-  final String id;
-  final String userId;
-  final String channelId;
-  final String streamUrl;
-  final String title;
-  final DateTime startTime;
-  final DateTime endTime;
-  final String status; // 'scheduled', 'recording', 'completed', 'failed', 'cancelled'
-  final String? filePath;
-  final String? errorReason;
-  final DateTime createdAt;
-  final DateTime updatedAt;
-
-  Recording({
-    required this.id,
-    required this.userId,
-    required this.channelId,
-    required this.streamUrl,
-    required this.title,
-    required this.startTime,
-    required this.endTime,
-    required this.status,
-    this.filePath,
-    this.errorReason,
-    required this.createdAt,
-    required this.updatedAt,
-  });
-
-  Map<String, dynamic> toMap() {
-    return {
-      'id': id,
-      'user_id': userId,
-      'channel_id': channelId,
-      'stream_url': streamUrl,
-      'title': title,
-      'start_time': startTime.toIso8601String(),
-      'end_time': endTime.toIso8601String(),
-      'status': status,
-      'file_path': filePath,
-      'error_reason': errorReason,
-      'created_at': createdAt.toIso8601String(),
-      'updated_at': updatedAt.toIso8601String(),
-    };
-  }
-
-  factory Recording.fromMap(Map<String, dynamic> map) {
-    return Recording(
-      id: map['id'] ?? '',
-      userId: map['user_id'] ?? '',
-      channelId: map['channel_id'] ?? '',
-      streamUrl: map['stream_url'] ?? '',
-      title: map['title'] ?? '',
-      startTime: DateTime.parse(map['start_time']),
-      endTime: DateTime.parse(map['end_time']),
-      status: map['status'] ?? 'scheduled',
-      filePath: map['file_path'],
-      errorReason: map['error_reason'],
-      createdAt: DateTime.parse(map['created_at']),
-      updatedAt: DateTime.parse(map['updated_at']),
-    );
-  }
-
-  String toJson() => json.encode(toMap());
-
-  factory Recording.fromJson(String source) =>
-      Recording.fromMap(json.decode(source));
-
-  Recording copyWith({
-    String? id,
-    String? userId,
-    String? channelId,
-    String? streamUrl,
-    String? title,
-    DateTime? startTime,
-    DateTime? endTime,
-    String? status,
-    String? filePath,
-    String? errorReason,
-    DateTime? createdAt,
-    DateTime? updatedAt,
-  }) {
-    return Recording(
-      id: id ?? this.id,
-      userId: userId ?? this.userId,
-      channelId: channelId ?? this.channelId,
-      streamUrl: streamUrl ?? this.streamUrl,
-      title: title ?? this.title,
-      startTime: startTime ?? this.startTime,
-      endTime: endTime ?? this.endTime,
-      status: status ?? this.status,
-      filePath: filePath ?? this.filePath,
-      errorReason: errorReason ?? this.errorReason,
-      createdAt: createdAt ?? this.createdAt,
-      updatedAt: updatedAt ?? this.updatedAt,
-    );
-  }
-}