fix: close housekeeping foundation review findings

src/features/housekeeping/foundation/preview-route-contract.test.ts

@@ -98,6 +98,9 @@ const forbiddenModuleRoots = [
 	"src/app/actions",
 	"src/app/admin",
 	"src/app/mod",
+	"@prisma/client",
+	"drizzle-orm",
+	"mysql2",
 ] as const;
 
 interface BabelNode {
@@ -287,10 +290,6 @@ function canonicalizeLocalSpecifier(
 	const suffixIndex = specifier.search(/[?#]/);
 	const withoutSuffix =
 		suffixIndex === -1 ? specifier : specifier.slice(0, suffixIndex);
-	const slashNormalized = withoutSuffix.replaceAll("\\", "/");
-	if (!slashNormalized.startsWith("@/") && !slashNormalized.startsWith(".")) {
-		return { candidates: [], violation: null };
-	}
 
 	let decoded: string;
 	try {
@@ -305,12 +304,15 @@ function canonicalizeLocalSpecifier(
 	} else if (decoded.startsWith(".")) {
 		normalized = posix.normalize(posix.join(posix.dirname(routeFile), decoded));
 	} else {
-		return { candidates: [], violation: "<malformed local specifier>" };
+		normalized = posix.normalize(decoded);
 	}
 
 	const extensionless = normalized.replace(resolverExtensionPattern, "");
 	return {
-		candidates: [...new Set([normalized, extensionless])],
+		candidates:
+			decoded.startsWith("@/") || decoded.startsWith(".")
+				? [...new Set([normalized, extensionless])]
+				: [normalized],
 		violation: null,
 	};
 }
@@ -785,6 +787,24 @@ describe("preview route import boundary", () => {
 			'import("../mod/users/page")',
 			"src/app/mod/users/page",
 		],
+		[
+			"Prisma TypeScript import type",
+			"src/app/admin-next/page.tsx",
+			'type PrismaClient = import("@prisma/client").PrismaClient;',
+			"@prisma/client",
+		],
+		[
+			"Drizzle package import",
+			"src/app/admin-next/page.tsx",
+			'import { sql } from "drizzle-orm";',
+			"drizzle-orm",
+		],
+		[
+			"mysql2 package import",
+			"src/app/admin-next/page.tsx",
+			'import type { Pool } from "mysql2";',
+			"mysql2",
+		],
 	] as const)("detects %s", (_name, routeFile, source, expectedPath) => {
 		expect(findRouteImportBoundaryViolations(source, routeFile)).toContain(
 			expectedPath,
@@ -824,6 +844,9 @@ describe("preview route import boundary", () => {
 			'import dbTools from "../../lib/db-tools.ts";',
 			'import auth from "../../lib/authentication";',
 			'import preview from "../admin-next-shared";',
+			'import prismaTools from "@prisma/client-tools";',
+			'import drizzleTools from "drizzle-orm-kit";',
+			'import mysqlTools from "mysql2-wrapper";',
 			"const documentation = \"import db from '../../lib/db'\";",
 			'const rawTemplate = `import("../../actions/users")`;',
 			'// import db from "../../lib/db";',