chore: tier-1 monorepo cleanups

Move .editorconfig from package/ to the repo root so it covers every
workspace.

Drop dead code:
- package/rollup-react-native-image.js: no callers, no rollup dep, no
  rollup.config; carried over from a pre-builder-bob layout.
- package/metro-dev-helpers/: not in core's published `files` allowlist
  (would 404 for any npm consumer following the README recipe), no
  in-repo users, recipe used the legacy Metro `blacklistRE` API that
  examples/SampleApp/metro.config.js already supersedes. README updated
  to point at the live SampleApp metro config.
- examples/{SampleApp,TypeScriptMessaging}/__tests__/App-test.tsx and
  their jest.config.js: unmodified RN scaffold smoke tests; CI never
  runs example tests (root test:coverage proxies to core), SampleApp's
  own test:unit script was literally `echo Skipping...`. Drops jest,
  react-test-renderer, @types/jest, @types/react-test-renderer from
  both example apps.
- babel-eslint@10.1.0 from package/devDependencies: deprecated package
  and the source of a recurring peer-warning during install.

Sync version pins:
- root resolutions: @types/react ^19.0.0 -> ^19.1.0 to match actual
  usage across workspaces.
- examples/{SampleApp,TypeScriptMessaging}: @types/jest ^29.5.14 ->
  ^30.0.0 to match the jest 30 already installed.

ESLint flat-config future-proofing:
- Drop the legacy `/* eslint-env node */` comment in
  package/metro-dev-helpers/extract-linked-packages.js (the file was
  deleted) and there are no others left. Removes the deprecation
  warning that ESLint 10 will turn into an error.

Add engines.node `>=20.19.4` to root package.json (mirrors the floor
SampleApp already declared).

Author: oliverlaz

package/.editorconfig .editorconfigpackage/.editorconfig renamed to .editorconfig

@@ -34,50 +34,11 @@ Here I am assuming that the clone of `stream-chat-react-native` and your app are
 
 ### Metro config
 
-If you run your app at this point, you will run into some issues related to `dependency collision`.
-Since metro bundler will have `node_module` dependencies from your `app` folder, `stream-chat-react-native`
-folder and `stream-chat-react-native/native-package` folder. And it doesn't know how to resolve those
-dependencies.
+If you run your app at this point, you'll hit `dependency collision` errors -- Metro doesn't know how to resolve modules (`react`, `react-native`, etc.) that appear both under your app's `node_modules` and under the cloned SDK's. You need to teach Metro which copy of each shared package to use and where to watch for SDK source changes.
 
-So you need to modify `metro.config.js`. We added some helpers for that inside of our package.
-You can copy-paste the following config:
+The cleanest reference is the in-repo example: [`examples/SampleApp/metro.config.js`](./SampleApp/metro.config.js). It uses `@react-native/metro-config` + `@rnx-kit/metro-config`'s `resolveUniqueModule` to handle deduplication, then adds the SDK directories to Metro's `watchFolders`. Copy that file into your app and adjust the paths to point at your local clone of `stream-chat-react-native`.
 
-:::note
-If you're using an older `metro-config` version, you may need to replace
-
-```js
-const blacklist = require('metro-config/src/defaults/exclusionList');
-```
-
-with
-
-```js
-const blacklist = require('metro-config/src/defaults/blackList');
-```
-
-:::
-
-```js
-const PATH = require('path');
-const blacklist = require('metro-config/src/defaults/exclusionList');
-
-const extractLinkedPackages = require('stream-chat-react-native-core/metro-dev-helpers/extract-linked-packages');
-
-const projectRoot = PATH.resolve(__dirname);
-
-const { alternateRoots, extraNodeModules, moduleBlacklist } = extractLinkedPackages(projectRoot);
-
-module.exports = {
-  resolver: {
-    blacklistRE: blacklist(moduleBlacklist),
-    extraNodeModules,
-    useWatchman: false,
-  },
-  watchFolders: [projectRoot].concat(alternateRoots),
-};
-```
-
-And as last step, clean install your app.
+Then clean-install:
 
 ```
 rm -rf node_modules
@@ -87,7 +48,7 @@ watchman watch-del-all
 yarn start --reset-cache
 ```
 
-And that's all. If you make code changes in `stream-chat-react-native`, they should reflect in your application.
+Changes you make in your local SDK clone will be reflected in your application.
 
 ## Samples repository
 

examples/README.md

@@ -14,12 +14,10 @@
     "ios": "react-native run-ios",
     "prestart": "yarn sync-native",
     "start": "react-native start",
-    "test": "jest",
     "extract-changelog": "FILTER_PATH='examples/SampleApp' TAG_FORMAT=$npm_package_name'@v${version}' node ../../release/extract-changelog.js",
     "bootstrap": "yarn install",
     "release": "FILTER_PATH='examples/SampleApp' TAG_FORMAT=$npm_package_name'@v${version}' node ../../release/prod",
     "release-next": "echo \"Skipping next release for SampleApp\"",
-    "test:unit": "echo \"Skipping unit tests for SampleApp\"",
     "clean": "watchman watch-del-all && yarn cache clean && rm -rf ios/build && pod cache clean --all && rm -rf android/build && cd android && ./gradlew clean && cd -",
     "clean-all": "yarn clean && rm -rf node_modules && rm -rf ios/Pods && rm -rf vendor && bundle install && yarn install && cd ios && bundle exec pod install && cd -",
     "fastlane:android-build": "bundle exec fastlane android firebase_build_and_upload deploy:false",
@@ -85,13 +83,9 @@
     "@react-native/metro-config": "0.81.6",
     "@react-native/typescript-config": "0.81.6",
     "@rnx-kit/metro-config": "^2.1.0",
-    "@types/jest": "^29.5.14",
     "@types/lodash.mergewith": "^4.6.9",
     "@types/react": "^19.1.4",
-    "@types/react-test-renderer": "^19.1.0",
     "babel-plugin-react-compiler": "^1.0.0",
-    "jest": "^30.4.2",
-    "react-test-renderer": "19.1.0",
     "typescript": "5.8.3"
   },
   "engines": {

examples/SampleApp/__tests__/App-test.tsx

@@ -10,7 +10,6 @@
     "ios": "react-native run-ios",
     "prestart": "yarn sync-native",
     "start": "react-native start",
-    "test": "jest",
     "clean": "watchman watch-del-all && yarn cache clean && rm -rf ios/build && pod cache clean --all && rm -rf android/build && cd android && ./gradlew clean && cd -",
     "clean-all": "yarn clean && rm -rf node_modules && rm -rf ios/Pods && rm -rf vendor && bundle install && yarn install && cd ios && bundle exec pod install && cd -"
   },
@@ -48,11 +47,7 @@
     "@react-native/metro-config": "0.80.2",
     "@react-native/typescript-config": "0.80.2",
     "@rnx-kit/metro-config": "^2.1.0",
-    "@types/jest": "^29.5.14",
     "@types/react": "^19.1.0",
-    "@types/react-test-renderer": "^19.1.0",
-    "jest": "^30.4.2",
-    "react-test-renderer": "19.1.0",
     "typescript": "5.8.3"
   }
 }

examples/SampleApp/jest.config.js

@@ -10,7 +10,10 @@
     "examples/TypeScriptMessaging"
   ],
   "resolutions": {
-    "@types/react": "^19.0.0"
+    "@types/react": "^19.1.0"
+  },
+  "engines": {
+    "node": ">=20.19.4"
   },
   "dependenciesMeta": {
     "@swc/core": {

examples/SampleApp/package.json

@@ -10,8 +10,6 @@ yarn-error.log
 .DS_Store
 dist/
 lib/
-# lib/ ignores metro-dev-helpers/lib so:
-!metro-dev-helpers/lib
 .env*
 examples/SampleApp/ios/vendor/
 vendor