feat: Implement SM.MS and Imgloc picture bed configuration

This commit introduces the configuration and integration of SM.MS and Imgloc as picture bed services.

- **ConfigurePictureBedPage**:
    - Displays the current configuration status (prepared or not prepared) for SM.MS and Imgloc.
    - Prompts the user to accept terms of service and privacy policy before configuring a picture bed for the first time.
    - Navigates to `ConfigureChevertoPage` for API key input.
    - Temporarily commented out SM.MS configuration.
- **ConfigureChevertoPage**:
    - Allows users to input and save the API token for the selected Cheverto-based picture bed (Imgloc, SM.MS).
    - Displays links to the terms of service and privacy policy for the selected picture bed.
    - Uses `PlatformTextFormField` for API key input.
- **CheveretoApiClient**:
    - Added `uploadImageToCheveretoByBinaryFile` method to support uploading images as binary files in addition to base64 strings.
- **New JSON Models and API Client for SM.MS**:
    - `SmmsTokenResult.dart`: Defines the model for SM.MS API token responses.
    - `SmmsProfileResult.dart`: Defines the model for SM.MS user profile responses.
    - `SmmsUploadImageResult.dart`: Defines the model for SM.MS image upload responses.
    - `SmmsApiClient.dart`: Implements a Retrofit client for interacting with the SM.MS API (v2), including methods for getting API tokens, user profiles, and uploading images.
    - Corresponding `.g.dart` files generated for JSON serialization/deserialization.
- **ChooseAdExemptPage**:
    - Updated the `PlatformElevatedButton` to use `Theme.of(context).colorScheme.primaryContainer` for its color and `Theme.of(context).colorScheme.onPrimaryContainer` for its text color.

Author: kidozh

lib/JsonResult/SmmsProfileResult.dart

@@ -0,0 +1,69 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'SmmsProfileResult.g.dart'; // Name your file, e.g., user_profile_response.dart
+
+@JsonSerializable(explicitToJson: true)
+class SmmsProfileResult {
+  bool success;
+  String code;
+  String message;
+  SmmsProfileData data;
+
+  @JsonKey(name: 'RequestId')
+  String requestId;
+
+  SmmsProfileResult({
+    required this.success,
+    required this.code,
+    required this.message,
+    required this.data,
+    required this.requestId,
+  });
+
+  factory SmmsProfileResult.fromJson(Map<String, dynamic> json) =>
+      _$SmmsProfileResultFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SmmsProfileResultToJson(this);
+}
+
+@JsonSerializable()
+class SmmsProfileData {
+  String username;
+  String email; // Empty string in example, so String is fine
+  String role;
+
+  @JsonKey(name: 'group_expire')
+  String groupExpire; // "0000-00-00", could be DateTime with a converter if needed
+
+  @JsonKey(name: 'email_verified')
+  int emailVerified; // 0 or 1, could be bool with a converter
+
+  @JsonKey(name: 'disk_usage')
+  String diskUsage; // e.g., "2.58 MB"
+
+  @JsonKey(name: 'disk_limit')
+  String diskLimit; // e.g., "50.00 GB"
+
+  @JsonKey(name: 'disk_usage_raw')
+  int diskUsageRaw; // Raw bytes
+
+  @JsonKey(name: 'disk_limit_raw')
+  int diskLimitRaw; // Raw bytes
+
+  SmmsProfileData({
+    required this.username,
+    required this.email,
+    required this.role,
+    required this.groupExpire,
+    required this.emailVerified,
+    required this.diskUsage,
+    required this.diskLimit,
+    required this.diskUsageRaw,
+    required this.diskLimitRaw,
+  });
+
+  factory SmmsProfileData.fromJson(Map<String, dynamic> json) =>
+      _$SmmsProfileDataFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SmmsProfileDataToJson(this);
+}

lib/JsonResult/SmmsProfileResult.g.dart

@@ -0,0 +1,41 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'SmmsTokenResult.g.dart'; // Name your file, e.g., api_token_response.dart
+
+@JsonSerializable(explicitToJson: true) // Good practice for nested objects
+class SmmsTokenResult {
+  bool success;
+  String code;
+  String message;
+  SmmsTokenData data;
+
+  @JsonKey(name: 'RequestId') // Matches the JSON key capitalization
+  String requestId;
+
+  SmmsTokenResult({
+    required this.success,
+    required this.code,
+    required this.message,
+    required this.data,
+    required this.requestId,
+  });
+
+  factory SmmsTokenResult.fromJson(Map<String, dynamic> json) =>
+      _$SmmsTokenResultFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SmmsTokenResultToJson(this);
+}
+
+@JsonSerializable()
+class SmmsTokenData {
+  String token;
+
+  SmmsTokenData({
+    required this.token,
+  });
+
+  factory SmmsTokenData.fromJson(Map<String, dynamic> json) =>
+      _$SmmsTokenDataFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SmmsTokenDataToJson(this);
+}

lib/JsonResult/SmmsTokenResult.dart

@@ -0,0 +1,63 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'SmmsUploadImageResult.g.dart'; // Name your file, e.g., smms_upload_response.dart
+
+@JsonSerializable(explicitToJson: true)
+class SmmsUploadImageResult {
+  bool success;
+  String code;
+  String message;
+  SmmsUploadImageData data;
+
+  @JsonKey(name: 'RequestId')
+  String requestId;
+
+  SmmsUploadImageResult({
+    required this.success,
+    required this.code,
+    required this.message,
+    required this.data,
+    required this.requestId,
+  });
+
+  factory SmmsUploadImageResult.fromJson(Map<String, dynamic> json) =>
+      _$SmmsUploadImageResultFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SmmsUploadImageResultToJson(this);
+}
+
+@JsonSerializable()
+class SmmsUploadImageData {
+  @JsonKey(name: 'file_id')
+  int fileId; // Assuming it's always an int, even if 0
+
+  int width;
+  int height;
+  String filename;
+  String storename;
+  int size;
+  String path;
+  String hash;
+  String url;
+  String delete;
+  String page;
+
+  SmmsUploadImageData({
+    required this.fileId,
+    required this.width,
+    required this.height,
+    required this.filename,
+    required this.storename,
+    required this.size,
+    required this.path,
+    required this.hash,
+    required this.url,
+    required this.delete,
+    required this.page,
+  });
+
+  factory SmmsUploadImageData.fromJson(Map<String, dynamic> json) =>
+      _$SmmsUploadImageDataFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SmmsUploadImageDataToJson(this);
+}

lib/JsonResult/SmmsTokenResult.g.dart

@@ -1,3 +1,5 @@
+import 'dart:io';
+
 import 'package:dio/dio.dart' hide Headers;
 import 'package:discuz_flutter/JsonResult/ChevertoUploadResult.dart';
 import 'package:retrofit/error_logger.dart';
@@ -11,8 +13,15 @@ abstract class CheveretoApiClient {
 
   @POST("/api/1/upload/")
   @FormUrlEncoded()
-  Future<ChevertoUploadResult> uploadImageToChevereto(
+  Future<ChevertoUploadResult> uploadImageToCheveretoByBase64(
       @Header("X-API-Key") String apiToken,
       @Field("source") String base64String,
       );
+
+  @POST("/api/1/upload/")
+  @FormUrlEncoded()
+  Future<ChevertoUploadResult> uploadImageToCheveretoByBinaryFile(
+      @Header("X-API-Key") String apiToken,
+      @Part() File source,
+      );
 }