v0.4.0

Update docs and build for PeerTalk v1.9.0 compatibility

Remove dead CLOG_LIB cache variable — peertalk uses TARGET clog
check now. Remove stale -DCLOG_LIB_DIR flags from build commands.
Update API reference from 22 to 29 functions. Document new
PT_GetPeerRank and debug broadcast features. Update port range
to include 7356.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

v0.3.0

v0.3.0 — Zero-setup builds with CMake FetchContent

- clog and peertalk are now fetched and built automatically from GitHub
  when local directories are not provided
- POSIX build is just: cmake -B build && cmake --build build
- Local dir overrides (-DCLOG_DIR, -DPEERTALK_DIR) still work for development
- CI and release workflows simplified — always build against latest dependencies
- No more pinned dependency commits or manual clone/build steps

v0.2.0

v0.2.0: Rebuild on PeerTalk SDK with CI/CD and cross-compilation support