refactor(repo): consolidate openflare-server to root and move subprojects to internal/apps

- Merge all files inside openflare-server to the repository root directory.
- Relocate agent, relay, and flared subprojects from internal/ to internal/apps/.
- Combine docker-compose files and update build context paths to root.
- Update GitHub workflows and Dockerfiles to refer to new directories and package names.
- Rewrite Go package imports across all files.
- Resolve database renew test race condition and clean up docs.

internal/apps/openflare/flared/routers.go

@@ -0,0 +1,120 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package flared
+
+import (
+	"net/http"
+
+	"github.com/Rain-kl/Wavelet/internal/apps/openflare/apiutil"
+	ofws "github.com/Rain-kl/Wavelet/internal/apps/openflare/websocket"
+	"github.com/Rain-kl/Wavelet/internal/common/response"
+	"github.com/Rain-kl/Wavelet/internal/model"
+	"github.com/gin-gonic/gin"
+)
+
+// PostHeartbeat handles POST /tunnel/heartbeat.
+// @Summary 上报 Tunnel 心跳
+// @Description Tunnel 客户端定期上报运行状态与中继连接信息，返回活跃配置元数据与隧道设置
+// @Tags openflare-tunnel
+// @Accept json
+// @Produce json
+// @Security TunnelTokenAuth
+// @Param body body flared.HeartbeatPayload true "心跳载荷"
+// @Success 200 {object} response.Any{data=flared.HeartbeatResponse} "心跳响应"
+// @Failure 400 {object} response.Any "参数错误"
+// @Failure 401 {object} response.Any "Tunnel Token 无效"
+// @Failure 403 {object} response.Any "节点类型不匹配"
+// @Router /api/v1/tunnel/heartbeat [post]
+func PostHeartbeat(c *gin.Context) {
+	var payload HeartbeatPayload
+	if !apiutil.BindJSON(c, &payload) {
+		return
+	}
+
+	authNode, ok := c.Get(ctxFlaredNodeKey)
+	if !ok {
+		response.AbortUnauthorized(c, errTunnelTokenInvalid)
+		return
+	}
+	node := authNode.(*model.OpenFlareNode)
+
+	result, err := Heartbeat(c.Request.Context(), node, payload)
+	if apiutil.AbortBadRequestOnError(c, err) {
+		return
+	}
+	c.JSON(http.StatusOK, response.OK(result))
+}
+
+// GetActiveConfig handles GET /tunnel/config/active.
+// @Summary 获取活跃隧道配置
+// @Description 返回 Tunnel 客户端当前应应用的完整路由配置（含中继列表与代理定义）
+// @Tags openflare-tunnel
+// @Produce json
+// @Security TunnelTokenAuth
+// @Success 200 {object} response.Any{data=flared.TunnelConfigResponse} "隧道配置"
+// @Failure 400 {object} response.Any "参数错误"
+// @Failure 401 {object} response.Any "Tunnel Token 无效"
+// @Failure 403 {object} response.Any "节点类型不匹配"
+// @Router /api/v1/tunnel/config/active [get]
+func GetActiveConfig(c *gin.Context) {
+	authNode, ok := c.Get(ctxFlaredNodeKey)
+	if !ok {
+		response.AbortUnauthorized(c, errTunnelTokenInvalid)
+		return
+	}
+	node := authNode.(*model.OpenFlareNode)
+
+	config, err := GetTunnelConfig(c.Request.Context(), node)
+	if apiutil.AbortBadRequestOnError(c, err) {
+		return
+	}
+	c.JSON(http.StatusOK, response.OK(config))
+}
+
+// PostApplyLog handles POST /tunnel/apply-log.
+// @Summary 上报 Tunnel 配置下发结果
+// @Description Tunnel 客户端上报配置应用结果，服务端记录下发日志
+// @Tags openflare-tunnel
+// @Accept json
+// @Produce json
+// @Security TunnelTokenAuth
+// @Param body body flared.ApplyLogPayload true "下发结果载荷"
+// @Success 200 {object} response.Any{data=model.OpenFlareApplyLog} "下发日志记录"
+// @Failure 400 {object} response.Any "参数错误"
+// @Failure 401 {object} response.Any "Tunnel Token 无效"
+// @Failure 403 {object} response.Any "节点类型不匹配"
+// @Router /api/v1/tunnel/apply-log [post]
+func PostApplyLog(c *gin.Context) {
+	var payload ApplyLogPayload
+	if !apiutil.BindJSON(c, &payload) {
+		return
+	}
+	if authNode, ok := c.Get(ctxFlaredNodeKey); ok {
+		payload.NodeID = authNode.(*model.OpenFlareNode).NodeID
+	}
+
+	log, err := ReportApplyLog(c.Request.Context(), payload)
+	if apiutil.AbortBadRequestOnError(c, err) {
+		return
+	}
+	c.JSON(http.StatusOK, response.OK(log))
+}
+
+// GetWebSocket handles GET /tunnel/ws.
+// @Summary 升级 Tunnel WebSocket 连接
+// @Description 将已认证的 Tunnel 客户端连接升级为 WebSocket 长连接，用于配置推送
+// @Tags openflare-tunnel
+// @Security TunnelTokenAuth
+// @Failure 401 {object} response.Any "Tunnel Token 无效"
+// @Failure 403 {object} response.Any "节点类型不匹配"
+// @Router /api/v1/tunnel/ws [get]
+func GetWebSocket(c *gin.Context) {
+	authNode, ok := c.Get(ctxFlaredNodeKey)
+	if !ok {
+		response.AbortUnauthorized(c, errTunnelTokenInvalid)
+		return
+	}
+	node := authNode.(*model.OpenFlareNode)
+	ofws.ServeFlared(c, node.NodeID)
+}