🔧 chore: 初始化番茄小说 API 项目结构

新增项目基础框架，包含核心 API 实现、算法模块、HTTP 处理器等完整功能模块

internal/handlers/manga_proxy.go

@@ -0,0 +1,44 @@
+package handlers
+
+import (
+	"fanqie/internal/fqapi"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+)
+
+// HandleMangaImageProxy 处理漫画图片代理请求
+func HandleMangaImageProxy(w http.ResponseWriter, r *http.Request) {
+	// 从URL路径提取参数: /manga/image/{itemID}/{index}
+	path := strings.TrimPrefix(r.URL.Path, "/manga/image/")
+	parts := strings.Split(path, "/")
+	
+	if len(parts) != 2 {
+		http.Error(w, "Invalid URL format. Expected: /manga/image/{itemID}/{index}", http.StatusBadRequest)
+		return
+	}
+	
+	itemID := parts[0]
+	index, err := strconv.Atoi(parts[1])
+	if err != nil {
+		http.Error(w, "Invalid index parameter", http.StatusBadRequest)
+		return
+	}
+	
+	// 获取解密后的图片数据
+	imageData, mimeType, err := fqapi.HandleMangaImageProxy(itemID, index)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("Failed to get image: %s", err.Error()), http.StatusInternalServerError)
+		return
+	}
+	
+	// 设置响应头
+	w.Header().Set("Content-Type", mimeType)
+	w.Header().Set("Cache-Control", "public, max-age=3600") // 缓存1小时
+	w.Header().Set("Content-Length", strconv.Itoa(len(imageData)))
+	
+	// 返回图片数据
+	w.Write(imageData)
+}
+