chore(release): prepare agent-knowledge 6.1.6

[drewstone]

Change

Release Knowledge 6.1.6 on Eval 0.134.0, removing the stale Eval 0.133.3 copy from Runtime consumer installs.

Proof

• TypeScript source and contract checks passed
• 468 tests passed, 12 skipped
• 188 files passed Biome
• build passed
• package verification passed, including clean install, five public imports, CLI version, dependency versions, and repack
• clean merge simulation against current origin/main

[tangletools]

✅ Auto-approved drewstone PR — 775b344a

This PR was opened by the trusted drewstone account.
The full PR reviewer audit still runs separately and will publish findings if it detects issues.

_{tangletools · auto-approval · reason: drewstone_author · 2026-07-28T07:31:15Z}