Finished changing structure to modules:

- ntfy
- keyserver
- webhook
- webserver
functional modules.

modules/webserver/webserver.go

@@ -0,0 +1,34 @@
+package webserver
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/gorilla/mux"
+)
+
+type Config struct {
+	Enabled    bool
+	ContentDir string
+}
+
+type Module struct {
+	cfg Config
+}
+
+func New(cfg Config) *Module {
+	return &Module{cfg: cfg}
+}
+
+func (m *Module) Name() string { return "webserver" }
+
+// RegisterRoutes uses a catch-all "/" handler — must be registered
+// LAST in main.go, after any more specific routes (keyserver, webhook),
+// since gorilla/mux matches in registration order.
+func (m *Module) RegisterRoutes(r *mux.Router) {
+	fs := http.FileServer(http.Dir(m.cfg.ContentDir))
+	r.PathPrefix("/").Handler(fs)
+}
+
+func (m *Module) Start(ctx context.Context) error { return nil }
+func (m *Module) Stop(ctx context.Context) error  { return nil }