v0.2.0: Veilid 0.4.8 Upgrade

What's Changed

Major Version Bump - Breaking changes due to Veilid
0.4.8 upgrade

Key Changes

• ✅ Upgraded to Veilid 0.4.8 (from 0.4.4)
• ✅ Updated to veilid-iroh-blobs v0.2.0
• ✅ Full codebase updated for Veilid 0.4.8 API
  compatibility
• ✅ CI/CD passes

Breaking Changes

• VeilidConfigInner → VeilidConfig
• CryptoKey → RouteId for route handling

Dependencies

veilid-core = { git = 
"https://gitlab.com/veilid/veilid.git", tag = 
"v0.4.8" }
veilid-iroh-blobs = { git = "https://github.com/RangerM
auve/veilid-iroh-blobs.git", tag = "v0.2.0" }

Full Changelog: https://github.com/OpenArchive/save-
dweb-backend/compare/v0.1.3...v0.2.0