feat(config): add box owner policy settings

Adds configuration options and environment variables to manage
box owner policies, including settings for refresh counts and expiry.

lib/server/account_nav.go

@@ -0,0 +1,61 @@
+package server
+
+import (
+	"strings"
+
+	"github.com/gin-gonic/gin"
+
+	"warpbox/lib/metastore"
+)
+
+type AccountNavView struct {
+	Username        string
+	IsAdmin         bool
+	ActiveSection   string
+	AlertCount      int
+	AlertSeverity   string
+	CanViewBoxes    bool
+	CanViewAlerts   bool
+	CanViewUsers    bool
+	CanViewAPIKeys  bool
+	CanViewSettings bool
+}
+
+func (app *App) accountNavView(ctx *gin.Context, activeSection string) AccountNavView {
+	perms := currentAccountPermissions(ctx)
+	isAdmin := perms.AdminAccess
+
+	return AccountNavView{
+		Username:        app.currentAdminUsername(ctx),
+		IsAdmin:         isAdmin,
+		ActiveSection:   activeSection,
+		AlertSeverity:   "ok",
+		CanViewBoxes:    true,
+		CanViewAlerts:   true,
+		CanViewUsers:    perms.AdminUsersManage,
+		CanViewAPIKeys:  true,
+		CanViewSettings: perms.AdminSettingsManage,
+	}
+}
+
+func currentAccountPermissions(ctx *gin.Context) metastore.EffectivePermissions {
+	value, ok := ctx.Get("adminPerms")
+	if !ok {
+		return metastore.EffectivePermissions{}
+	}
+	perms, ok := value.(metastore.EffectivePermissions)
+	if !ok {
+		return metastore.EffectivePermissions{}
+	}
+	return perms
+}
+
+func normalizeAlertSeverity(severity string) string {
+	normalized := strings.ToLower(strings.TrimSpace(severity))
+	switch normalized {
+	case "danger", "warning", "info", "ok":
+		return normalized
+	default:
+		return "ok"
+	}
+}