Refactor AI chat: streaming, tool calls, UI polish

apps/server/src/ai-config/ai-config.entity.ts

@@ -48,6 +48,9 @@ export class AiConfig {
   @Column({ type: 'boolean', default: true })
   enabled: boolean;
 
+  @Column({ name: 'supports_vision', type: 'boolean', default: false })
+  supportsVision: boolean;
+
   @Column({ name: 'timeout_ms', type: 'int', default: 30000 })
   timeoutMs: number;
 

apps/server/src/ai-config/ai-config.service.ts

@@ -480,6 +480,7 @@ export class AiConfigService {
       keySource: source,
       defaultModel: config.defaultModel ?? null,
       enabled: config.enabled,
+      supportsVision: config.supportsVision,
       timeoutMs: config.timeoutMs,
       verified: config.verified,
       lastTestedAt: config.lastTestedAt?.toISOString() ?? null,
@@ -526,6 +527,18 @@ export class AiConfigService {
       config.enabled = true;
     }
 
+    if (dto.supportsVision !== undefined) {
+      config.supportsVision = dto.supportsVision;
+    }
+
+    if (dto.enabled === true) {
+      const { plaintext } = this.resolveApiKey(config);
+      if (!plaintext) throw new BadRequestException('启用 AI 服务前必须配置 API Key');
+      if (!config.defaultModel?.trim()) {
+        throw new BadRequestException('启用 AI 服务前必须配置默认模型');
+      }
+    }
+
     return this.repo.save(config);
   }
 
@@ -834,6 +847,7 @@ export class AiConfigService {
       defaultModel: config.defaultModel,
       timeoutMs: config.timeoutMs,
       enabled: config.enabled,
+      supportsVision: config.supportsVision,
     };
   }
 }

apps/server/src/ai-config/dto/ai-config.dto.ts

@@ -42,6 +42,10 @@ export class SaveAiConfigDto {
   @IsBoolean()
   enabled?: boolean;
 
+  @IsOptional()
+  @IsBoolean()
+  supportsVision?: boolean;
+
   @IsOptional()
   @IsInt()
   @Min(1000)
@@ -85,6 +89,7 @@ export interface AiConfigResponseDto {
   keySource: 'database' | 'environment' | 'none';
   defaultModel: string | null;
   enabled: boolean;
+  supportsVision: boolean;
   timeoutMs: number;
   verified: boolean;
   lastTestedAt: string | null;
@@ -111,6 +116,7 @@ export interface AiRuntimeConfig {
   defaultModel: string;
   timeoutMs: number;
   enabled: boolean;
+  supportsVision: boolean;
 }
 
 /** DTO for POST /api/ai/config/models — fetch available model list from provider */