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

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

src/domain/javascript/javascriptSemanticIr.ts

@@ -7,6 +7,7 @@ import type {
 
 /** One exact module origin followed through imports, requires, or aliases. */
 export interface JavaScriptModuleOrigin {
+  readonly resolutionMode?: "import" | "require";
   readonly specifier: string;
   readonly importedPath: readonly string[];
 }
@@ -392,8 +393,10 @@ export interface JavaScriptSemanticFrontier {
 
 /** Static import/export relationship retained for cross-file composition. */
 export interface JavaScriptSemanticModuleLink {
+  readonly resolutionMode?: "import" | "require";
   readonly kind:
     | "import"
+    | "type-import"
     | "require"
     | "export"
     | "re-export"