feat: add GitHub Actions workflow for automated release creation and update CHANGELOG.md structure

release.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# Get version from platformio.ini
+VERSION=$(grep '^version = ' platformio.ini | sed 's/version = "\(.*\)"/\1/')
+
+if [ -z "$VERSION" ]; then
+    echo "Error: Could not find version in platformio.ini"
+    exit 1
+fi
+
+echo "Creating release for version $VERSION"
+
+# Check if working directory is clean
+if [ -n "$(git status --porcelain)" ]; then
+    echo "Error: Working directory is not clean. Please commit all changes first."
+    exit 1
+fi
+
+# Create and push tag
+git tag "v$VERSION"
+if [ $? -ne 0 ]; then
+    echo "Error: Failed to create tag v$VERSION"
+    exit 1
+fi
+
+git push origin "v$VERSION"
+if [ $? -ne 0 ]; then
+    echo "Error: Failed to push tag v$VERSION"
+    git tag -d "v$VERSION"
+    exit 1
+fi
+
+echo "Successfully created and pushed tag v$VERSION"
+echo "GitHub Actions workflow will now create the release"