fix(javascript): preserve package and source-map boundary identity (#1939)

* fix(javascript): preserve bare package specifier suffixes

* fix(javascript): resolve ESM package self references

* fix(javascript): recover retained prefixed source maps

* test(javascript): cover suffixed ESM self references

* fix(javascript): retain legacy ESM package suffix behavior

* fix(javascript): reject legacy ESM directory and extension fallback

* refactor(javascript): consolidate package resolution and workflow coverage

* fix(javascript): report exact ESM package subpath misses

* fix(javascript): compare parsed names for ESM self references

* refactor(javascript): parse bare package requests once

* fix(javascript): derive ESM dependency lookup from package URLs

---------

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

tests/support/cli/javascriptApplication.ts

@@ -0,0 +1,34 @@
+import { expect } from "vitest";
+import { z } from "zod";
+
+import { javascriptApplicationAnalysisResultSchema } from "../../../src/domain/javascript/javascriptApplicationAnalysis.js";
+import { connectLocalToolsMcp } from "../../fixtures/localToolsMcp.js";
+import type { TestCli } from "./cliFixture.js";
+
+/** Analyze a directory through a public adapter and validate its result contract. */
+export const analyzeJavaScriptDirectory = async (
+  surface: "CLI" | "stdio MCP",
+  cli: TestCli,
+  root: string,
+) => {
+  let document: unknown;
+  if (surface === "CLI") {
+    const response = await cli.run({
+      arguments: ["analyze-javascript-application", root, "--format", "json"],
+      environment: { REA_LOG_LEVEL: "silent" },
+    });
+    expect(response.exitCode, response.stderr).toBe(0);
+    document = response.json;
+  } else {
+    const { call } = await connectLocalToolsMcp();
+    const response = await call("analyze_javascript_application", {
+      input_path: root,
+      format: "directory",
+    });
+    expect(response.isError, JSON.stringify(response)).not.toBe(true);
+    document = response.structuredContent;
+  }
+  return z
+    .object({ normalized_result: javascriptApplicationAnalysisResultSchema })
+    .parse(document).normalized_result;
+};