Refactor tool execution pipeline

tools/build.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+# 构建所有工具
+set -e
+cd "$(dirname "$0")"
+
+TOOLS=(datetime weather amap web_search fetch_page memories)
+
+echo "=== 构建工具 ==="
+for tool in "${TOOLS[@]}"; do
+    echo "  $tool..."
+    (cd "$tool" && cargo build --release --quiet)
+done
+
+echo "=== 完成 ==="
+for tool in "${TOOLS[@]}"; do
+    ls -lh "$tool/target/release/$tool" 2>/dev/null
+done