Add the codex-lane facts and doc-sync marker to CLAUDE.md, document the
per-lane tool picker in README/README.vi, and bring server/README.md and
client/README.md's API and routing tables up to date with the tmux-backed
run endpoints and the /workspace route.
Adds README.vi.md as the Vietnamese translation of README.md, and
documents the pipeline-template picker/CLI switch (ccam lanes pipeline)
added in the previous feature.
nntrivi2001