Add full app source

Adds the Flutter inventory app source, cleaned up for a shared repo:
generic package name, no hardcoded ERP endpoints (moved to gitignored
local config), no dead auth code, no debug logging of session data.

lib/models/depot.dart

@@ -0,0 +1,110 @@
+import 'package:inventory_app/utils.dart';
+
+class Depot {
+  int? id;
+  String? name;
+  MetaFile? picture;
+
+  Depot({this.id, this.name, this.picture});
+
+  Depot.fromJson(Map<dynamic, dynamic> json) {
+    id = json['id'];
+    name = json['name'];
+    picture =
+        json['picture'] != null ? MetaFile.fromJson(json['picture']) : null;
+  }
+
+  Map<dynamic, dynamic> toJson() {
+    final Map<dynamic, dynamic> data = {};
+    data['id'] = this.id;
+    data['name'] = this.name;
+    if (picture != null) {
+      data['picture'] = picture!.toJson();
+    }
+    return data;
+  }
+
+  /// 👇 Get full image URL (you can customize baseUrl to be from `AxelorClient.baseUrl`)
+  String? get imageUrl {
+    if (picture?.id != null) {
+      return '${Utils.url}/ws/rest/com.axelor.meta.db.MetaFile/${picture!.id}/content/download';
+    }
+    return null;
+  }
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is Depot && runtimeType == other.runtimeType && id == other.id;
+
+  @override
+  int get hashCode => id.hashCode;
+}
+
+class Company {
+  String? code;
+  String? name;
+  int? id;
+  int? version;
+
+  Company({this.code, this.name, this.id, this.version});
+
+  Company.fromJson(Map<String, dynamic> json) {
+    code = json['code'];
+    name = json['name'];
+    id = json['id'];
+    version = json['$version'];
+  }
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = new Map<String, dynamic>();
+    data['code'] = this.code;
+    data['name'] = this.name;
+    data['id'] = this.id;
+    data['$version'] = this.version;
+    return data;
+  }
+}
+
+class UpdatedBy {
+  String? code;
+  String? fullName;
+  int? id;
+  int? version;
+
+  UpdatedBy({this.code, this.fullName, this.id, this.version});
+
+  UpdatedBy.fromJson(Map<String, dynamic> json) {
+    code = json['code'];
+    fullName = json['fullName'];
+    id = json['id'];
+    version = json['$version'];
+  }
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = new Map<String, dynamic>();
+    data['code'] = this.code;
+    data['fullName'] = this.fullName;
+    data['id'] = this.id;
+    data['$version'] = this.version;
+    return data;
+  }
+}
+
+class MetaFile {
+  String? fileName;
+  int? id;
+  int? version;
+
+  MetaFile({this.fileName, this.id, this.version});
+
+  MetaFile.fromJson(Map<String, dynamic> json) {
+    fileName = json['fileName'];
+    id = json['id'];
+    version = json['$version'];
+  }
+
+  Map<String, dynamic> toJson() {
+    return {'fileName': fileName, 'id': id, '\$version': version};
+  }
+}