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/embed.go

@@ -0,0 +1,25 @@
+// Package web serves the server-rendered Bootstrap 5 admin UI: Go
+// templates plus vanilla JS/CSS, all embedded into the binary. No
+// frontend framework is used.
+package web
+
+import (
+	"embed"
+	"io/fs"
+)
+
+//go:embed all:templates
+var templatesFS embed.FS
+
+//go:embed all:static
+var staticFSRaw embed.FS
+
+// StaticFS returns the embedded static assets rooted at "static/..." so
+// they can be served at /static/.
+func StaticFS() fs.FS {
+	sub, err := fs.Sub(staticFSRaw, "static")
+	if err != nil {
+		panic(err)
+	}
+	return sub
+}