refactor(repo): consolidate openflare-server to root and move subprojects to internal/apps

- Merge all files inside openflare-server to the repository root directory.
- Relocate agent, relay, and flared subprojects from internal/ to internal/apps/.
- Combine docker-compose files and update build context paths to root.
- Update GitHub workflows and Dockerfiles to refer to new directories and package names.
- Rewrite Go package imports across all files.
- Resolve database renew test race condition and clean up docs.

internal/cmd/bootstrap.go

@@ -0,0 +1,17 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package cmd
+
+import (
+	"context"
+
+	"github.com/Rain-kl/Wavelet/internal/bootstrap"
+	"github.com/Rain-kl/Wavelet/pkg/trace"
+)
+
+func runBootstrap(opts bootstrap.Options) {
+	ctx, span := trace.Start(context.Background(), "bootstrap.Init")
+	defer span.End()
+	bootstrap.Init(ctx, opts)
+}