test: assert TechLog search focus style

tests/features/tech-log/style-contract.test.ts

@@ -96,7 +96,7 @@ describe("TechLog consumer-visible style contract", () => {
     expect(getComputedStyle(wordmark).fontWeight).toBe("680");
   });
 
-  it("preserves keyboard focus and the real search-field focus relationship", async () => {
+  it("preserves keyboard focus and the real search-field focus style", async () => {
     const user = userEvent.setup();
     const view = renderPublicSurface(
       createElement(
@@ -122,6 +122,9 @@ describe("TechLog consumer-visible style contract", () => {
     expect(searchInput).toHaveFocus();
     expect(searchField).not.toBeNull();
     expect(searchField!.matches(":focus-within")).toBe(true);
+    expect(getComputedStyle(searchField!).boxShadow).toBe(
+      "0 0 0 3px var(--signal-soft)",
+    );
   });
 
   it("keeps every header and dialog control at the source minimum target size", () => {