docs: add npm install as recommended quick start method

chore: exclude data/ and docs from npm package

chore: prepare for npm publish as openclaw-a2a-gateway

docs: add DevTools CLI section to README

Merge feat/cli-commands-wave2: A2A DevTools CLI (8 commands)

feat(cli): add discover, stream, bench, trace commands

feat(cli): scaffold A2A DevTools CLI with 4 commands

chore: bump version to v1.4.0

feat(cli): improve developer experience for A2A CLI tools (#51)

feat: recover stale tasks on gateway startup (#52)

Merge pull request #41 from zycaskevin/master

fix: rebase connection pooling onto current runtime

fix: harden bio-inspired modules + expand benchmark to 6 dimensions

chore: bump version to v1.3.0

docs: sync bio-inspired positioning to all 9 language READMEs