Initial commit: Luminary AI Gateway

OpenAI-compatible AI gateway with Vue admin UI, multi-provider egress,
ingress key governance, monitoring, and security controls.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/handler/admin/settings.go

@@ -0,0 +1,29 @@
+package admin
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/rose_cat707/luminary/internal/settings"
+)
+
+func (h *Handler) GetSettings(c *gin.Context) {
+	c.JSON(http.StatusOK, h.settings.PublicView())
+}
+
+func (h *Handler) UpdateSettings(c *gin.Context) {
+	var in settings.UpdateInput
+	if err := c.ShouldBindJSON(&in); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid request"})
+		return
+	}
+	if err := h.settings.Update(in); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	h.loginLimit.Configure(h.settings.LoginMaxAttempts(), h.settings.LoginLockout())
+	if h.monitor != nil {
+		h.monitor.NotifySettingsChanged()
+	}
+	c.JSON(http.StatusOK, h.settings.PublicView())
+}