fix(catalog): show not-found instead of falling back to first route on unknown entity sub-paths (#34081)

* fix(catalog): show not-found instead of falling back to first route on unknown entity sub-paths

Signed-off-by: benjdlambert <ben@blam.sh>

* fix(catalog): address PR review feedback

Signed-off-by: benjdlambert <ben@blam.sh>

* fix(core-compat-api): update entity page conversion test for new not-found behavior

Signed-off-by: benjdlambert <ben@blam.sh>

* fix(catalog): use NotFoundErrorPage and drop redundant route sort

Signed-off-by: benjdlambert <ben@blam.sh>

* fix(catalog): split slash trimming into two replacements for clarity

Signed-off-by: benjdlambert <ben@blam.sh>

* fix(catalog): comment normalizeRoutePath regex and memoize routes

Signed-off-by: benjdlambert <ben@blam.sh>

* fix(catalog): preserve explicit trailing wildcards in route paths

Signed-off-by: benjdlambert <ben@blam.sh>

---------

Signed-off-by: benjdlambert <ben@blam.sh>

packages/core-compat-api/src/convertLegacyApp.test.tsx

@@ -317,9 +317,10 @@ describe('convertLegacyApp', () => {
       features: [catalogOverride, ...converted],
       initialRouteEntries: ['/catalog/default/other/x/bar'],
     });
+    // /bar does not exist on the "other" entity layout, expect the not-found page.
     await expect(
-      renderBarOther.findByText('other overview content', {}, findOptions),
-    ).resolves.toBeInTheDocument(); // /bar does not exist, fall back to rendering overview
+      renderBarOther.findByTestId('error', {}, findOptions),
+    ).resolves.toBeInTheDocument();
     renderBarOther.unmount();
   });
 });