refactor: update dependencies and remove unused code

- Added new dependencies: `adler2`, `crc32fast`, `flate2`, `miniz_oxide`, and `libredox`.
- Updated existing dependencies: `tokio-rustls` to version 0.26.4 and `filetime` to version 0.2.27.
- Removed the `backup.rs` file as it is no longer needed.
- Introduced tests for configuration and credential management.
- Enhanced the `identity` module to generate W3C compliant DID documents.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/archipelago/src/network/router.rs

@@ -5,7 +5,7 @@ use anyhow::{Context, Result};
 use serde::{Deserialize, Serialize};
 use std::path::Path;
 use tokio::fs;
-use tracing::{debug, info, warn};
+use tracing::debug;
 
 const FORWARDS_FILE: &str = "port_forwards.json";