Initial open-source release (MIT): image2api AI gateway

Full Go backend + Vue 3 frontend, OpenAI-compatible API, multi-provider
account pools, billing/admin, Docker one-command deploy with auto HTTPS.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/internal/http/handler/site.go

@@ -0,0 +1,25 @@
+package handler
+
+import (
+	"net/http"
+
+	"backend/internal/service"
+	"github.com/gin-gonic/gin"
+)
+
+type SiteHandler struct {
+	site *service.SiteService
+}
+
+func NewSiteHandler(site *service.SiteService) *SiteHandler {
+	return &SiteHandler{site: site}
+}
+
+func (h *SiteHandler) Public(c *gin.Context) {
+	title, err := h.site.Title(c.Request.Context())
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"detail": "failed to load site"})
+		return
+	}
+	c.JSON(http.StatusOK, gin.H{"title": title, "contact": h.site.Contact(c.Request.Context())})
+}