Platform upgrade: React 18, MUI v7, Node 24, test stack modernization, shared-module DLL rework.

.eslintrc.json

@@ -1,53 +1,52 @@
 {
-  "parser": "babel-eslint",
-  "plugins": ["prettier"],
+  "parser": "@babel/eslint-parser",
   "extends": [
     "eslint:recommended",
-    "plugin:react/recommended",
-    "plugin:prettier/recommended"
+    "plugin:react/recommended"
   ],
   "env": {
     "browser": true,
     "commonjs": true,
     "es6": true,
-    "node": false
+    "node": false,
+    "jest": true
   },
   "parserOptions": {
+    "requireConfigFile": false,
     "ecmaFeatures": {
       "jsx": true
     },
+    "babelOptions": {
+      "presets": ["@babel/preset-react"]
+    },
     "sourceType": "module"
   },
   "rules": {
     "quotes": [
       "warn",
       "single"
     ],
-    "prettier/prettier": "warn",
     "strict": 0,
     "react/prop-types": "warn",
     "react/jsx-no-duplicate-props": "warn",
     "react/no-deprecated": "warn",
     "react/display-name": "warn",
+    "react/jsx-uses-vars": "warn",
     "no-extra-semi": "warn",
     "no-dupe-keys": "warn",
     "no-const-assign": "warn",
     "no-this-before-super": "warn",
     "no-undef": "warn",
     "no-unreachable": "warn",
     "no-unused-vars": "warn",
-    "jsx-uses-vars": true,
     "constructor-super": "warn",
     "valid-typeof": "warn",
     "no-case-declarations": "warn",
     "no-console": "warn"
   },
   "settings": {
     "react": {
-      "pragma": "React",  // Pragma to use, default to "React"
-      "version": "detect" // React version. "detect" automatically picks the version you have installed.
-      // You can also use `16.0`, `16.3`, etc, if you want to override the detected value.
-      // default to latest and warns if missing
+      "version": "detect"
     }
   }
 }

.github/workflows/ci.yml

@@ -0,0 +1,93 @@
+name: PIE Lib CI
+
+on:
+  push:
+    branches: [develop, master]
+  pull_request:
+    branches: [develop, master]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0   # REQUIRED for lerna version
+      - name: Configure Git
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: yarn
+      - run: yarn install
+      - run: scripts/release --build
+      - run: scripts/release --test
+
+  build-next:
+    needs: test
+    if: >
+      github.event_name == 'push' &&
+      github.ref == 'refs/heads/develop'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write   # REQUIRED for npm trusted publishing
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0   # REQUIRED for lerna version
+      - name: Configure Git
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          registry-url: https://registry.npmjs.org/
+          cache: yarn
+      - run: yarn install
+      - run: scripts/release --build
+      - run: scripts/release --release --next --loglevel verbose
+
+  build-release:
+    needs: test
+    if: >
+      github.event_name == 'push' &&
+      github.ref == 'refs/heads/master'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write   # REQUIRED for npm trusted publishing
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0   # REQUIRED for lerna version
+      - name: Configure Git
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          registry-url: https://registry.npmjs.org/
+          cache: yarn
+      - run: yarn install
+      - run: scripts/release --build
+      # ─────────────────────────────────────────────────────────────────────
+      # TEMPORARY: --major forces every publishable package to a new major
+      # version on the next publish. This is in place ONLY for the platform
+      # upgrade release (React 18, MUI v7, Node 24, test stack modernization).
+      #
+      # REVERT THIS IMMEDIATELY AFTER THE PLATFORM RELEASE PUBLISHES.
+      #
+      # How to revert: open a follow-up PR to master that removes the
+      # --major flag from the line below, restoring:
+      #   - run: scripts/release --release --loglevel verbose
+      #
+      # Leaving --major in place will bump every package to the next major
+      # on EVERY subsequent merge to master, which is almost certainly not
+      # what you want.
+      # ─────────────────────────────────────────────────────────────────────
+      - run: scripts/release --release --major --loglevel verbose

.gitignore

@@ -1,5 +1,6 @@
 node_modules
 lib
+esm
 lerna-debug.log
 .vscode
 .idea
@@ -13,4 +14,5 @@ PIE-*
 !pie-toolbox/**
 !pie-toolbox/.gitignore
 packages/*-module@*
-
+packages/**/esm
+coverage

.husky/pre-commit

@@ -0,0 +1 @@
+npx lint-staged

.lintstagedrc

@@ -2,7 +2,7 @@
   "packages/**/!(lib)/**/*.{js,jsx}": [
     "pretty-quick --staged",
     "eslint --fix",
-    "jest --bail --findRelatedTests",
+    "jest --bail --findRelatedTests --passWithNoTests",
     "git add"
   ]
 }

.npmignore

@@ -0,0 +1,4 @@
+**/__tests__/**
+**/__mocks__/**
+*.tgz
+NEXT.CHANGELOG.json