fix: correct material name type keyword matching logic

Reverse the inclusion check to properly match when materialName contains typeKeyword.materialName (e.g., "ABC123_SPECIAL" contains "ABC123").

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

src/main/ipc/validation-handler.ts

@@ -340,7 +340,7 @@ export function registerValidationHandlers(): void {
             for (const typeKeyword of typeKeywords) {
               if (
                 typeKeyword.materialName &&
-                typeKeyword.materialName.includes(materialName)
+                materialName.includes(typeKeyword.materialName)
               ) {
                 matchedTypeKeyword = typeKeyword.materialName
                 managerName = typeKeyword.managerName