fix: improve release automation date format and changelog extraction

Release skill (.claude/skills/release/skill.sh):
- Fixed changelog extraction using sed instead of awk to properly capture
  version content between section headers
- Added 'v' prefix to release title to match previous releases (e.g., 'Release v3.4.3')
- Updated final message to explicitly mention reviewing draft release
  and making it public with URL

Prepare-release skill (.claude/skills/prepare-release/skill.sh):
- Fixed date format to use ordinal suffixes (1st, 2nd, 3rd, etc.)
- Removed leading zeros from day (e.g., 'May 1st, 2026' instead of 'May 01, 2026')
- Aligns with existing CHANGELOG.md date formatting

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: muzahidul-opti

.claude/skills/prepare-release/skill.sh

@@ -69,7 +69,20 @@ sed -i.bak "s/static const String version = '.*';/static const String version =
 sed -i.bak "s/optimizely_flutter_sdk: \^.*/optimizely_flutter_sdk: ^$NEW_VERSION/" README.md && rm README.md.bak
 
 # Update CHANGELOG
-CURRENT_DATE=$(date "+%B %d, %Y")
+# Generate date with ordinal suffix (e.g., "May 1st, 2026")
+DAY=$(date "+%-d")  # Day without leading zero
+MONTH=$(date "+%B")
+YEAR=$(date "+%Y")
+
+# Add ordinal suffix
+case $DAY in
+    1|21|31) SUFFIX="st" ;;
+    2|22) SUFFIX="nd" ;;
+    3|23) SUFFIX="rd" ;;
+    *) SUFFIX="th" ;;
+esac
+
+CURRENT_DATE="${MONTH} ${DAY}${SUFFIX}, ${YEAR}"
 
 # Build CHANGELOG entries from PRs
 CHANGELOG_ENTRIES=""

.claude/skills/release/skill.sh

@@ -45,7 +45,7 @@ flutter packages pub publish || error "Publishing failed"
 success "Published to pub.dev!"
 
 # Extract CHANGELOG
-CHANGELOG_CONTENT=$(awk "/^## $VERSION/,/^## / {print}" CHANGELOG.md | sed '$d' | sed '1d')
+CHANGELOG_CONTENT=$(sed -n "/^## ${VERSION}\$/,/^## [0-9]/p" CHANGELOG.md | sed '1d;$d')
 [[ -z "$CHANGELOG_CONTENT" ]] && CHANGELOG_CONTENT="Release $VERSION\n\nSee CHANGELOG.md for details."
 
 RELEASE_NOTES="## $VERSION
@@ -55,7 +55,7 @@ $CHANGELOG_CONTENT"
 # Create GitHub release
 info "Creating GitHub draft release..."
 GH_RELEASE_URL=$(gh release create "v${VERSION}" \
-    --title "Release ${VERSION}" \
+    --title "Release v${VERSION}" \
     --notes "$RELEASE_NOTES" \
     --target master \
     --draft \
@@ -73,7 +73,7 @@ echo "Pub.dev: https://pub.dev/packages/optimizely_flutter_sdk/versions/$VERSION
 echo "GitHub Release: $GH_RELEASE_URL"
 echo ""
 echo "Next Steps:"
-echo "1. 🔍 Verify package on pub.dev (1-3 minutes)"
-echo "2. ✏️  Review GitHub draft release"
-echo "3. ✅ Publish GitHub release"
+echo "1. 🔍 Verify package on pub.dev (may take 1-10 minutes to appear)"
+echo "2. ✏️  Review the draft release at: $GH_RELEASE_URL"
+echo "3. ✅ Make the draft release public once verified"
 echo ""