v0.8.6 - AutoContrib

AutoContrib 0.8.6 for DeepSeek Harness.

• Fresh repository for the AutoContrib plugin (plugin ID auto-contrib)
• Four-module workbench: dashboard, contribution rounds, interview automation, worker pool
• 178 tests passing; source builds cleanly at tag v0.8.6

Install the attached dsh-plugin-auto-contrib-0.8.6.tgz into a DSH profile.