fix: fix JSDoc package test imports and exports map

- Fix config-loader, parse5-utils test imports to use src/ not dist/
- Fix rollup-plugin-copy, rollup-plugin-import-meta-assets test imports
  to use .js not .ts (JSDoc packages still have .js source on PR2)
- Fix dev-server-core exports map: use "default" condition instead of
  "require"/"import" for Node 24 ESM compatibility
- Resolve merge conflict markers in test files
- Remove unused path imports

Assisted-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: bennypowers

packages/config-loader/test/index.test.mjs

@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict';
 import { describe, it } from 'node:test';
 import path from 'path';
-import { readConfig } from '../dist/index.js';
+import { readConfig } from '../src/index.js';
 
 const __dirname = import.meta.dirname;
 const configName = 'my-project.config';

packages/dev-server-core/package.json

@@ -17,17 +17,19 @@
   "exports": {
     ".": {
       "types": "./index.d.ts",
-      "import": "./index.mjs",
-      "require": "./dist/index.js"
+      "default": "./dist/index.js"
     },
     "./dist/dom5": {
       "types": "./dist/dom5/index.d.ts",
-      "require": "./dist/dom5/index.js"
+      "default": "./dist/dom5/index.js"
     },
     "./test-helpers": {
       "types": "./test-helpers.d.ts",
-      "import": "./test-helpers.mjs",
-      "require": "./dist/test-helpers.js"
+      "default": "./dist/test-helpers.js"
+    },
+    "./test-helpers.js": {
+      "types": "./test-helpers.d.ts",
+      "default": "./dist/test-helpers.js"
     }
   },
   "engines": {

packages/parse5-utils/test/index.test.mjs

@@ -1,8 +1,8 @@
 import assert from 'node:assert/strict';
 import { describe, it } from 'node:test';
 import { parse, serialize } from 'parse5';
-import { getAttribute, getTextContent, findElement } from '../dist/index.js';
-import * as utils from '../dist/index.js';
+import { getAttribute, getTextContent, findElement } from '../src/index.js';
+import * as utils from '../src/index.js';
 
 describe('parse5-utils', () => {
   describe('createElement', () => {

packages/rollup-plugin-copy/test/integration.test.mjs

@@ -3,7 +3,7 @@ import assert from 'node:assert/strict';
 import { describe, it } from 'node:test';
 import { rollup } from 'rollup';
 
-import { copy } from '../src/copy.ts';
+import { copy } from '../src/copy.js';
 
 const __dirname = import.meta.dirname;
 

packages/rollup-plugin-copy/test/listFiles.test.mjs

@@ -2,7 +2,7 @@ import path from 'path';
 import assert from 'node:assert/strict';
 import { describe, it } from 'node:test';
 
-import { listFiles } from '../src/listFiles.ts';
+import { listFiles } from '../src/listFiles.js';
 
 const __dirname = import.meta.dirname;
 

packages/rollup-plugin-copy/test/patternsToFiles.test.mjs

@@ -2,7 +2,7 @@ import path from 'path';
 import assert from 'node:assert/strict';
 import { describe, it } from 'node:test';
 
-import { patternsToFiles } from '../src/patternsToFiles.ts';
+import { patternsToFiles } from '../src/patternsToFiles.js';
 
 const __dirname = import.meta.dirname;
 

packages/rollup-plugin-import-meta-assets/test/integration.test.mjs

@@ -4,7 +4,7 @@ import { rollup } from 'rollup';
 import assert from 'node:assert/strict';
 import { describe, it, beforeEach, afterEach, mock } from 'node:test';
 
-import { importMetaAssets } from '../src/rollup-plugin-import-meta-assets.ts';
+import { importMetaAssets } from '../src/rollup-plugin-import-meta-assets.js';
 
 const __dirname = import.meta.dirname;