fix(pkb): fix create KB and upload issues - remove simulated upload, fix department mapping, add upload modal

Fixed issues:
- Remove simulateUpload function from DashboardPage Step 3
- Map department to description field when creating KB
- Add upload modal in WorkspacePage knowledge assets tab
- Fix DocumentUpload import path (../../stores to ../stores)

Known issue: Dify API validation error during document upload (file uploaded but DB record failed, needs investigation)

Testing: KB creation works, upload dialog opens correctly

docs/03-业务模块/ASL-AI智能文献/05-开发记录/2025-01-23_全文复筛前端开发完成.md

@@ -402,6 +402,9 @@ GET    /api/v1/asl/fulltext-screening/tasks/:taskId/export
 
 
 
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docs/03-业务模块/ASL-AI智能文献/05-开发记录/2025-01-23_全文复筛前端逻辑调整.md

@@ -345,6 +345,9 @@ Linter错误：0个
 
 
 
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docs/03-业务模块/ASL-AI智能文献/05-开发记录/2025-11-23_Day5_全文复筛API开发.md

@@ -504,6 +504,9 @@ Failed to open file '\\tmp\\extraction_service\\temp_10000_test.pdf'
 
 
 
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