feat: unified THE FORGE // SECTION headers and merged proxy routes

UI consistency
- ForgeHero now supports backHref, mono kicker, stats snippet, staggered
  entrance animation, and a registration-tick divider
- Every route now opens with the same "THE FORGE // SECTION" eyebrow: projects,
  sites, stacks, proxies, events, dns, deploy, settings, stale containers,
  site/project detail + env/volumes/browse, new site wizard
- Stacks list/detail/new moved to the shared hero and brand-anchor eyebrow
- Toolbars migrated from bespoke buttons to the shared .forge-btn utilities
- Sidebar footline adds a live UTC "forge clock" and a vim-style g-prefix
  quick-nav hint (g d/p/s/k/x/r/e/c jumps to each section)

Proxies page
- Server-side: merge static site proxy routes with instance routes and sort
  by domain (internal/api/proxies.go, internal/store/static_sites.go)
- ProxyRoute gains a Source field ("instance" | "static_site")
- Frontend adds source filter tabs and per-source labels/badges

internal/api/proxies.go

@@ -3,10 +3,12 @@ package api
 import (
 	"log/slog"
 	"net/http"
+	"sort"
 )
 
 // listProxyRoutes handles GET /api/proxies.
-// Returns all proxy-enabled instances with project and stage names.
+// Returns proxy routes from both Docker instances and static sites,
+// merged and sorted by domain.
 func (s *Server) listProxyRoutes(w http.ResponseWriter, r *http.Request) {
 	settings, err := s.store.GetSettings()
 	if err != nil {
@@ -15,12 +17,27 @@ func (s *Server) listProxyRoutes(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	routes, err := s.store.ListProxyRoutes(settings.Domain)
+	instanceRoutes, err := s.store.ListProxyRoutes(settings.Domain)
 	if err != nil {
-		slog.Error("failed to list proxy routes", "error", err)
+		slog.Error("failed to list instance proxy routes", "error", err)
 		respondError(w, http.StatusInternalServerError, "internal server error")
 		return
 	}
 
+	siteRoutes, err := s.store.ListStaticSiteProxyRoutes(settings.Domain)
+	if err != nil {
+		slog.Error("failed to list static site proxy routes", "error", err)
+		respondError(w, http.StatusInternalServerError, "internal server error")
+		return
+	}
+
+	routes := append(instanceRoutes, siteRoutes...)
+	sort.SliceStable(routes, func(i, j int) bool {
+		if routes[i].Domain == routes[j].Domain {
+			return routes[i].ProjectName < routes[j].ProjectName
+		}
+		return routes[i].Domain < routes[j].Domain
+	})
+
 	respondJSON(w, http.StatusOK, routes)
 }