feat(admin): Complete Phase 3.5.1-3.5.4 Prompt Management System (83%)

Summary:
- Implement Prompt management infrastructure and core services
- Build admin portal frontend with light theme
- Integrate CodeMirror 6 editor for non-technical users

Phase 3.5.1: Infrastructure Setup
- Create capability_schema for Prompt storage
- Add prompt_templates and prompt_versions tables
- Add prompt:view/edit/debug/publish permissions
- Migrate RVW prompts to database (RVW_EDITORIAL, RVW_METHODOLOGY)

Phase 3.5.2: PromptService Core
- Implement gray preview logic (DRAFT for debuggers, ACTIVE for users)
- Module-level debug control (setDebugMode)
- Handlebars template rendering
- Variable extraction and validation (extractVariables, validateVariables)
- Three-level disaster recovery (database -> cache -> hardcoded fallback)

Phase 3.5.3: Management API
- 8 RESTful endpoints (/api/admin/prompts/*)
- Permission control (PROMPT_ENGINEER can edit, SUPER_ADMIN can publish)

Phase 3.5.4: Frontend Management UI
- Build admin portal architecture (AdminLayout, OrgLayout)
- Add route system (/admin/*, /org/*)
- Implement PromptListPage (filter, search, debug switch)
- Implement PromptEditor (CodeMirror 6 simplified for clinical users)
- Implement PromptEditorPage (edit, save, publish, test, version history)

Technical Details:
- Backend: 6 files, ~2044 lines (prompt.service.ts 596 lines)
- Frontend: 9 files, ~1735 lines (PromptEditorPage.tsx 399 lines)
- CodeMirror 6: Line numbers, auto-wrap, variable highlight, search, undo/redo
- Chinese-friendly: 15px font, 1.8 line-height, system fonts

Next Step: Phase 3.5.5 - Integrate RVW module with PromptService

Tested: Backend API tests passed (8/8), Frontend pending user testing
Status: Ready for Phase 3.5.5 RVW integration

backend/compare_dc_asl.ts

@@ -0,0 +1,80 @@
+import { PrismaClient } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+async function getTableColumns(schema: string, tableName: string): Promise<any[]> {
+  return prisma.$queryRawUnsafe(`
+    SELECT column_name, data_type, is_nullable, column_default
+    FROM information_schema.columns
+    WHERE table_schema = '${schema}' AND table_name = '${tableName}'
+    ORDER BY ordinal_position
+  `);
+}
+
+async function main() {
+  console.log('🔍 DC 和 ASL 模块表结构对比\n');
+  console.log('=' .repeat(70));
+
+  // DC 模块的表
+  const dcTables = [
+    'dc_extraction_items',
+    'dc_extraction_tasks', 
+    'dc_health_checks',
+    'dc_templates',
+    'dc_tool_c_ai_history',
+    'dc_tool_c_sessions'
+  ];
+
+  // ASL 模块的表
+  const aslTables = [
+    'fulltext_screening_results',
+    'fulltext_screening_tasks',
+    'literatures',
+    'screening_projects',
+    'screening_results',
+    'screening_tasks'
+  ];
+
+  console.log('\n📋 DC 模块 (dc_schema) 当前表结构:\n');
+  
+  for (const table of dcTables) {
+    console.log(`\n--- dc_schema.${table} ---`);
+    try {
+      const cols = await getTableColumns('dc_schema', table);
+      if (cols.length === 0) {
+        console.log('  ❌ 表不存在');
+      } else {
+        cols.forEach((c: any) => {
+          console.log(`  ${c.column_name}: ${c.data_type} ${c.is_nullable === 'NO' ? 'NOT NULL' : ''}`);
+        });
+      }
+    } catch (e) {
+      console.log('  ❌ 查询失败');
+    }
+  }
+
+  console.log('\n\n📋 ASL 模块 (asl_schema) 当前表结构:\n');
+  
+  for (const table of aslTables) {
+    console.log(`\n--- asl_schema.${table} ---`);
+    try {
+      const cols = await getTableColumns('asl_schema', table);
+      if (cols.length === 0) {
+        console.log('  ❌ 表不存在');
+      } else {
+        cols.forEach((c: any) => {
+          console.log(`  ${c.column_name}: ${c.data_type} ${c.is_nullable === 'NO' ? 'NOT NULL' : ''}`);
+        });
+      }
+    } catch (e) {
+      console.log('  ❌ 查询失败');
+    }
+  }
+
+  console.log('\n' + '=' .repeat(70));
+}
+
+main()
+  .catch(console.error)
+  .finally(() => prisma.$disconnect());
+