feat: add HybridRouter add LRUCache

hono/cache.v

@@ -0,0 +1,65 @@
+module hono
+
+// 简化的LRU缓存实现
+pub struct LRUCache {
+mut:
+	capacity int
+	cache    map[string]RouteMatch
+	keys     []string // 维护访问顺序
+}
+
+
+
+pub fn new_lru_cache(capacity int) LRUCache {
+	return LRUCache{
+		capacity: capacity
+		cache: map[string]RouteMatch{}
+		keys: []string{}
+	}
+}
+
+pub fn (mut cache LRUCache) get(key string) ?RouteMatch {
+	if key in cache.cache {
+		// 移动到列表末尾（最近使用）
+		idx := cache.keys.index(key)
+		if idx != -1 {
+			cache.keys.delete(idx)
+		}
+		cache.keys << key
+		return cache.cache[key]
+	}
+	return none
+}
+
+pub fn (mut cache LRUCache) put(key string, value RouteMatch) {
+	if key in cache.cache {
+		// 更新现有项
+		cache.cache[key] = value
+		// 移动到列表末尾
+		idx := cache.keys.index(key)
+		if idx != -1 {
+			cache.keys.delete(idx)
+		}
+		cache.keys << key
+	} else {
+		// 添加新项
+		cache.cache[key] = value
+		cache.keys << key
+		
+		// 如果超出容量，删除最久未使用的项
+		if cache.cache.len > cache.capacity {
+			oldest_key := cache.keys[0]
+			cache.cache.delete(oldest_key)
+			cache.keys.delete(0)
+		}
+	}
+}
+
+pub fn (mut cache LRUCache) clear() {
+	cache.cache.clear()
+	cache.keys.clear()
+}
+
+pub fn (cache LRUCache) size() int {
+	return cache.cache.len
+}