refactor: modernize package.json and fix CJS/ESM warnings

- Use pkg.exports instead of pkg.main (modern standard)
- Update repository URL to full git URL format
- Rename CJS files in fixtures to .cjs extension
- Update fixture documentation references

Author: KristjanESPERANTO

fixtures/modules/synthetic-jquery-local/FIXTURE.md

@@ -8,7 +8,7 @@ Triggers the local jQuery detection and outdated version warning.
 
 | Rule ID | Trigger file | Notes |
 | ------- | ------------ | ----- |
-| detect-jquery-local-copy | `public/js/jquery.min.js` | Local minified jQuery copy is checked in. |
+| detect-jquery-local-copy | `public/js/jquery.min.cjs` | Local minified jQuery copy is checked in. |
 
 Additional behaviour: because the minified file lacks any `jQuery v3.7` marker, the stage should also flag the copy as outdated.
 

fixtures/modules/synthetic-jquery-local/README.md

@@ -1,3 +1,3 @@
 # Local jQuery Fixture
 
-A tiny placeholder file mimics a checked-in `jquery.min.js` so the harness can ensure both the "local copy" and "outdated version" messages fire.
+A tiny placeholder file mimics a checked-in `jquery.min.cjs` so the harness can ensure both the "local copy" and "outdated version" messages fire.

…tic-jquery-local/public/js/jquery.min.js …ic-jquery-local/public/js/jquery.min.cjsfixtures/modules/synthetic-jquery-local/public/js/jquery.min.js renamed to fixtures/modules/synthetic-jquery-local/public/js/jquery.min.cjs fixtures/modules/synthetic-jquery-local/public/js/jquery.min.js renamed to fixtures/modules/synthetic-jquery-local/public/js/jquery.min.cjs

@@ -12,15 +12,17 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/MagicMirrorOrg/MagicMirror-3rd-Party-Modules"
+    "url": "git+https://github.com/MagicMirrorOrg/MagicMirror-3rd-Party-Modules.git"
   },
   "license": "MIT",
   "author": {
     "name": "Kristjan ESPERANTO",
     "url": "https://github.com/KristjanESPERANTO"
   },
   "type": "module",
-  "main": "scripts/collect-metadata/index.js",
+  "exports": {
+    ".": "./scripts/collect-metadata/index.js"
+  },
   "directories": {
     "doc": "docs"
   },