Add blog post: Network tunnels in AI: Secure comms for autonomous agents

Fix badge test: remove tags and task-executors badges

These badge endpoints were removed in the dashboard simplification.

Add auto-updater sidecar, version reporting, network sync, and IPv6 fix

- pilot-updater sidecar: checks GitHub Releases, downloads archives,
  verifies SHA256 checksums, replaces binaries, restarts daemon
- Version reporting: daemon sends build-time version to registry,
  displayed in pilotctl info and network members
- Network sync: periodic reconciliation of network memberships,
  policies, and member tags from registry (5-min interval)
- Fix IPv6 end-to-end: skip LAN address optimization when tunnel
  and peer use different address families
- Security audit fixes: registry auth, replication auth, per-port
  accept, P2P handshake signing
- Build: updater added to release archives, checksums.txt generated

Add network memberships to pilotctl info output

Show joined networks and their addresses in both human-readable
and JSON info output. Queries registry for current network list
on each info call.

Update website: navbar, topbar, and page styling tweaks

Add binary protocol, WAL, member tags tests, Go SDK docs, and plans page

New registry internals: binary wire protocol, write-ahead log, delta
sync, binary client. New tests for member tags and scaling. Simulation
harness for load testing. Website: Go SDK documentation and plans page.

Python SDK Release v0.1.2

Node SDK Release v0.1.1

Node SDK Release v0.1.0

Merge branch 'main' of github.com:TeoSlayer/pilotprotocol