chore(release): prepare 0.1.2 for OpenClaw 2026.6.34

[blckbx]

Summary

• update the exact OpenClaw public SDK baseline to 2026.6.34 across package metadata, lockfile, validators, tests, and documentation
• retain 2026.7.2-beta.6 as the minimum deployable and security-smoke host because npm currently reports six findings in the development-only 2026.6.34 SDK tree
• bump the plugin and release documentation to 0.1.2

Testing

• npm run ci under Node.js 22.22.3
• 191 tests passed with coverage
• lint, strict typecheck, formatting, build, package validation, SDK import validation, artifact/install smoke tests, package dry-run, and audit passed
• audit verified zero production/deploy-host findings; six findings remain isolated to the non-shipped 2026.6.34 SDK tree