feat: auto-generate markdown report after cleaner execution

- Add CleanerReportGenerator service to create execution reports
- Extend OrderCleanDetail with skippedMaterials for detailed tracking
- Record skip reasons for each material (protected range, pending qty, etc.)
- Generate timestamped markdown reports in logs/reports/ directory
- Reports include execution summary, order details, skip reasons, and errors

src/main/types/cleaner.types.ts

@@ -27,11 +27,19 @@ export interface CleanerResult {
   details: OrderCleanDetail[]
 }
 
+export interface SkippedMaterial {
+  materialCode: string
+  materialName: string
+  rowNumber: number
+  reason: string
+}
+
 export interface OrderCleanDetail {
   orderNumber: string
   materialsDeleted: number
   materialsSkipped: number
   errors: string[]
+  skippedMaterials: SkippedMaterial[]
 }
 
 /**