fix(admin): support 4-segment version in domain layer & make changelog optional

- VersionName value object now accepts x.y.z.w format
- changelog field is now optional in upload version DTO
- profile page: ensure expired section has full width

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/services/admin-service/src/api/dto/request/upload-version.dto.ts

@@ -27,9 +27,10 @@ export class UploadVersionDto {
   @IsString()
   buildNumber?: string
 
-  @ApiProperty({ description: '更新日志' })
+  @ApiPropertyOptional({ description: '更新日志', default: '' })
+  @IsOptional()
   @IsString()
-  changelog: string
+  changelog?: string
 
   @ApiPropertyOptional({ description: '是否强制更新', default: false })
   @IsOptional()

backend/services/admin-service/src/domain/value-objects/version-name.vo.ts

@@ -2,19 +2,21 @@ import { DomainException } from '../../shared/exceptions/domain.exception';
 
 /**
  * 版本名称值对象
- * 格式: major.minor.patch (e.g., 1.0.0, 2.3.1)
+ * 格式: major.minor.patch 或 major.minor.patch.build (e.g., 1.0.0, 1.0.0.4)
  */
 export class VersionName {
   private readonly _value: string;
   private readonly _major: number;
   private readonly _minor: number;
   private readonly _patch: number;
+  private readonly _build?: number;
 
-  private constructor(value: string, major: number, minor: number, patch: number) {
+  private constructor(value: string, major: number, minor: number, patch: number, build?: number) {
     this._value = value;
     this._major = major;
     this._minor = minor;
     this._patch = patch;
+    this._build = build;
   }
 
   get value(): string {
@@ -33,24 +35,30 @@ export class VersionName {
     return this._patch;
   }
 
+  get build(): number | undefined {
+    return this._build;
+  }
+
   static create(value: string): VersionName {
     if (!value || value.trim() === '') {
       throw new DomainException('VersionName cannot be empty');
     }
 
     const trimmed = value.trim();
-    const versionPattern = /^(\d+)\.(\d+)\.(\d+)$/;
+    // 支持 x.y.z 或 x.y.z.w 格式
+    const versionPattern = /^(\d+)\.(\d+)\.(\d+)(?:\.(\d+))?$/;
     const match = trimmed.match(versionPattern);
 
     if (!match) {
-      throw new DomainException('VersionName must follow semantic versioning format (e.g., 1.0.0)');
+      throw new DomainException('VersionName must follow semantic versioning format (e.g., 1.0.0 or 1.0.0.4)');
     }
 
     const major = parseInt(match[1], 10);
     const minor = parseInt(match[2], 10);
     const patch = parseInt(match[3], 10);
+    const build = match[4] ? parseInt(match[4], 10) : undefined;
 
-    return new VersionName(trimmed, major, minor, patch);
+    return new VersionName(trimmed, major, minor, patch, build);
   }
 
   equals(other: VersionName): boolean {

frontend/mobile-app/lib/features/profile/presentation/pages/profile_page.dart

@@ -1005,17 +1005,19 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
 
   /// 构建已过期区域
   Widget _buildExpiredSection() {
-    return Container(
-      padding: const EdgeInsets.all(16),
-      decoration: BoxDecoration(
-        color: const Color(0xFFFFF5E6),
-        borderRadius: BorderRadius.circular(8),
-        border: Border.all(
-          color: const Color(0x33D4AF37),
-          width: 1,
+    return SizedBox(
+      width: double.infinity,
+      child: Container(
+        padding: const EdgeInsets.all(16),
+        decoration: BoxDecoration(
+          color: const Color(0xFFFFF5E6),
+          borderRadius: BorderRadius.circular(8),
+          border: Border.all(
+            color: const Color(0x33D4AF37),
+            width: 1,
+          ),
         ),
-      ),
-      child: Column(
+        child: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           const Text(
@@ -1083,6 +1085,7 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
             ],
           ),
         ],
+        ),
       ),
     );
   }