diff --git a/test/store.helpers.unit.test.ts b/test/store.helpers.unit.test.ts
index eb7f8a6..e3c2373 100644
--- a/test/store.helpers.unit.test.ts
+++ b/test/store.helpers.unit.test.ts
@@ -114,14 +114,14 @@ describe("cleanupOrphanedVectors", () => {
 // =============================================================================
 
 describe("handelize", () => {
-  test("converts to lowercase", () => {
-    expect(handelize("README.md")).toBe("readme.md");
-    expect(handelize("MyFile.MD")).toBe("myfile.md");
+  test("preserves original case", () => {
+    expect(handelize("README.md")).toBe("README.md");
+    expect(handelize("MyFile.MD")).toBe("MyFile.MD");
   });
 
   test("preserves folder structure", () => {
     expect(handelize("a/b/c/d.md")).toBe("a/b/c/d.md");
-    expect(handelize("docs/api/README.md")).toBe("docs/api/readme.md");
+    expect(handelize("docs/api/README.md")).toBe("docs/api/README.md");
   });
 
   test("replaces non-word characters with dash", () => {
@@ -151,7 +151,7 @@ describe("handelize", () => {
   test("handles complex real-world meeting notes", () => {
     const complexName = "Money Movement Licensing Review - 2025／11／19 10:25 EST - Notes by Gemini.md";
     const result = handelize(complexName);
-    expect(result).toBe("money-movement-licensing-review-2025-11-19-10-25-est-notes-by-gemini.md");
+    expect(result).toBe("Money-Movement-Licensing-Review-2025-11-19-10-25-EST-Notes-by-Gemini.md");
     expect(result).not.toContain(" ");
     expect(result).not.toContain("／");
     expect(result).not.toContain(":");
@@ -159,7 +159,7 @@ describe("handelize", () => {
 
   test("handles unicode characters", () => {
     expect(handelize("日本語.md")).toBe("日本語.md");
-    expect(handelize("Зоны и проекты.md")).toBe("зоны-и-проекты.md");
+    expect(handelize("Зоны и проекты.md")).toBe("Зоны-и-проекты.md");
     expect(handelize("café-notes.md")).toBe("café-notes.md");
     expect(handelize("naïve.md")).toBe("naïve.md");
     expect(handelize("日本語-notes.md")).toBe("日本語-notes.md");
@@ -181,13 +181,13 @@ describe("handelize", () => {
   test("handles dates and times in filenames", () => {
     expect(handelize("meeting-2025-01-15.md")).toBe("meeting-2025-01-15.md");
     expect(handelize("notes 2025/01/15.md")).toBe("notes-2025/01/15.md");
-    expect(handelize("call_10:30_AM.md")).toBe("call-10-30-am.md");
+    expect(handelize("call_10:30_AM.md")).toBe("call-10-30-AM.md");
   });
 
   test("handles special project naming patterns", () => {
-    expect(handelize("PROJECT_ABC_v2.0.md")).toBe("project-abc-v2-0.md");
-    expect(handelize("[WIP] Feature Request.md")).toBe("wip-feature-request.md");
-    expect(handelize("(DRAFT) Proposal v1.md")).toBe("draft-proposal-v1.md");
+    expect(handelize("PROJECT_ABC_v2.0.md")).toBe("PROJECT-ABC-v2.0.md");
+    expect(handelize("[WIP] Feature Request.md")).toBe("WIP-Feature-Request.md");
+    expect(handelize("(DRAFT) Proposal v1.md")).toBe("DRAFT-Proposal-v1.md");
   });
 
   test("handles symbol-only route filenames", () => {