fix(javascript): retain compiler-dependent module resolution facts

Compare import and require outcomes for static TypeScript references when compiler options are unknown. Preserve branch facts through worker IR and both graph projections; retain declaration fallbacks as candidates without changing explicitly selected paths.

Validation: 210 focused resolver and semantic tests; 21 production-boundary and source-extension tests. A bounded 2,000-reference probe adds about 16–17 ms wall time for dual resolution; full task token costs and real compiled application behavior remain unmeasured.

src/application/javascript/JavaScriptArtifactPathResolution.test.ts

@@ -1890,21 +1890,40 @@ describe("TypeScript NodeNext emitted-extension resolution", () => {
       ).toMatchObject({ resolution_status: "resolved", resolved_path: target });
     },
   );
+});
+
+describe("TypeScript declaration fallback ownership", () => {
+  const container = "container";
 
   it.each([
     ["./dep.js", "src/dep.d.ts"],
     ["./cfg.mjs", "src/cfg.d.mts"],
     ["./legacy.cjs", "src/legacy.d.cts"],
   ] as const)(
-    "resolves %s to a declaration counterpart",
+    "retains %s as compile-time evidence without inventing a runtime target",
     (specifier, target) => {
       const files = fileMap([
         file("src/main.ts", container),
         file(target, container, "export const value = 1;"),
       ]);
+      for (const moduleKind of ["import", "require"] as const) {
+        expect(
+          resolve({
+            declaredPath: specifier,
+            sourcePath: "src/main.ts",
+            context: "module-specifier",
+            moduleKind,
+            files,
+          }),
+        ).toMatchObject({
+          resolution_status: "unavailable",
+          resolved_path: null,
+          candidate_path: target,
+        });
+      }
       expect(
         resolve({
-          declaredPath: specifier,
+          declaredPath: "./" + target.slice(4),
           sourcePath: "src/main.ts",
           context: "module-specifier",
           moduleKind: "import",