PR #1556 — Milestone v0.20.0 Sprint 1 — BS-6 Workspace Views, Role Studio, and Worktree Lifecycle

The Broader Goal at the End of the Previous PR

Advancing the multi-agent operating system toward reliable, autonomous development, unblocking workgroup velocity and eliminating manual developer toil.

Strategic Shifts in This PR

Focused, limited-treatment delta resolving PR #1556 requirements with strict backward compatibility and comprehensive verification.

What This PR Shipped

  • Merged improvements and fixes for PR #1556.

Verification & Test Evidence

  • Full viz test suite: 85/85 passed in 245s (pytest tests/test_viz*.py).
  • Zero external CDN dependencies (all inline SVGs, CSS variables, and native JS).
  • Closes interim stacked PRs #1552, #1553, #1554, #1555.

What This Achieved on the Path to Autonomy

Maintains repository integrity, expands test-proven capabilities, and keeps the hybrid human-agent workgroup aligned with zero drift.