Initial vibeproxy implementation

Self-contained HTTP/HTTPS/TCP/UDP reverse proxy manager written in Go,
with SQLite storage, a Bootstrap 5 admin UI (Go templates, no JS
framework), and a REST API under /api/v1.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QTXFrNP1imCW7jtfL5SZrw

internal/web/dashboard.go

@@ -0,0 +1,16 @@
+package web
+
+import (
+	"net/http"
+
+	"github.com/owen/vibeproxy/internal/stats"
+)
+
+func (h *Web) handleDashboard(w http.ResponseWriter, r *http.Request) {
+	d, err := stats.Compute(h.db, h.store.Current())
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	render(w, "dashboard", PageData{Active: "dashboard", Title: "Dashboard", Data: d})
+}