chore(ci): centralize tool version management into a single source of truth

scripts/load-tool-versions.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+# Load tool versions from .tool-versions file
+# This script sources the .tool-versions file and exports the variables
+
+set -e
+
+TOOL_VERSIONS_FILE=".tool-versions"
+
+if [ ! -f "$TOOL_VERSIONS_FILE" ]; then
+    echo "ERROR: $TOOL_VERSIONS_FILE not found"
+    exit 1
+fi
+
+# Source the tool versions file
+# This exports all TOOL_NAME=version pairs as environment variables
+while IFS='=' read -r key value; do
+    # Skip empty lines and comments
+    [[ -z "$key" || "$key" =~ ^# ]] && continue
+    # Trim whitespace
+    key=$(echo "$key" | xargs)
+    value=$(echo "$value" | xargs)
+    export "$key=$value"
+done < "$TOOL_VERSIONS_FILE"
+
+# Output the loaded versions for verification
+echo "Loaded tool versions from $TOOL_VERSIONS_FILE:"
+grep -v '^#' "$TOOL_VERSIONS_FILE" | grep -v '^$' | sed 's/^/  /'