fix(javascript): preserve import-equals declaration and export evidence (#2062)

* fix(javascript): retain TypeScript import-equals dependencies

* test(mcp): align completion checks with warm provider state

* fix(javascript): propagate require origins through exported aliases

* fix(javascript): normalize equivalent CTS binding origins

---------

Co-authored-by: hhang <169027046+xu91102@users.noreply.github.com>

src/domain/javascript/javascriptSemanticRequireOrigin.ts

@@ -54,7 +54,11 @@ export const semanticRequireOrigin = (
   return specifier === undefined
     ? undefined
     : {
-        origin: { specifier, importedPath: members.reverse() },
+        origin: {
+          specifier,
+          importedPath: members.reverse(),
+          resolutionMode: "require",
+        },
         call: current,
       };
 };