Add scripts/bump-version.sh for version management

Usage: scripts/bump-version.sh {major|minor|patch}

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: ndbroadbent

scripts/bump-version.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+VERSION_FILE="$SCRIPT_DIR/../lib/log_struct/version.rb"
+
+usage() {
+  echo "Usage: $0 {major|minor|patch}"
+  echo
+  echo "Bumps the version in lib/log_struct/version.rb"
+  echo
+  echo "Examples:"
+  echo "  $0 patch   # 0.1.11 -> 0.1.12"
+  echo "  $0 minor   # 0.1.11 -> 0.2.0"
+  echo "  $0 major   # 0.1.11 -> 1.0.0"
+  exit 1
+}
+
+if [[ $# -ne 1 ]]; then
+  usage
+fi
+
+BUMP_TYPE="$1"
+
+if [[ ! "$BUMP_TYPE" =~ ^(major|minor|patch)$ ]]; then
+  echo "Error: Invalid bump type '$BUMP_TYPE'"
+  usage
+fi
+
+# Extract current version
+CURRENT_VERSION=$(grep -oE 'VERSION = "[0-9]+\.[0-9]+\.[0-9]+"' "$VERSION_FILE" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+')
+
+if [[ -z "$CURRENT_VERSION" ]]; then
+  echo "Error: Could not find VERSION in $VERSION_FILE"
+  exit 1
+fi
+
+# Parse version components
+IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT_VERSION"
+
+# Bump the appropriate component
+case "$BUMP_TYPE" in
+  major)
+    MAJOR=$((MAJOR + 1))
+    MINOR=0
+    PATCH=0
+    ;;
+  minor)
+    MINOR=$((MINOR + 1))
+    PATCH=0
+    ;;
+  patch)
+    PATCH=$((PATCH + 1))
+    ;;
+esac
+
+NEW_VERSION="$MAJOR.$MINOR.$PATCH"
+
+# Update the version file
+sed -i '' "s/VERSION = \"$CURRENT_VERSION\"/VERSION = \"$NEW_VERSION\"/" "$VERSION_FILE"
+
+echo "Bumped version: $CURRENT_VERSION -> $NEW_VERSION"