[packages.dart] chore: migrate workspace to hermetic Bazel build environment

.gitea/workflows/update-readme.yml

@@ -0,0 +1,41 @@
+name: Update README
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'packages/**'
+      - '.gitmodules'
+      - 'scripts/update_readme.dart'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  update-readme:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          submodules: true
+
+      - name: Setup Dart
+        uses: dart-lang/setup-dart@v1
+
+      - name: Run update script
+        run: dart scripts/update_readme.dart
+
+      - name: Commit and Push
+        run: |
+          if [ -n "$(git status --porcelain README.md)" ]; then
+            git config --global user.name "github-actions[bot]"
+            git config --global user.email "github-actions[bot]@users.noreply.github.com"
+            git add README.md
+            git commit -m "docs: update README [skip ci]"
+            git push
+          else
+            echo "No changes to README.md"
+          fi

.gitea/workflows/update-submodules.yml

@@ -0,0 +1,45 @@
+name: Update Submodules
+
+on:
+  schedule:
+    - cron: '0 0 * * *' # Runs daily at midnight
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  update-submodules:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          submodules: true
+          fetch-depth: 0
+
+      - name: Update submodules
+        run: |
+          git submodule update --remote --recursive
+
+      - name: Check for changes
+        id: diff
+        run: |
+          if [ -n "$(git status --porcelain)" ]; then
+            echo "changes=true" >> $GITHUB_OUTPUT
+          else
+            echo "changes=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Create Pull Request
+        if: steps.diff.outputs.changes == 'true'
+        uses: peter-evans/create-pull-request@v8
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: "chore: update submodules"
+          title: "chore: update submodules"
+          body: "Automated update of submodules to their latest commits."
+          branch: update-submodules
+          base: main
+          delete-branch: true