ef16743406
Two visual defects in the agent avatar stack (PR #304), missed by the code-only review: - The launcher (human) avatar was fully occluded behind the opaque agent glyph — the container was exactly the glyph size, so the launcher sat underneath it. Enlarge the container by an overhang and vertically center the glyph so the launcher peeks out at the bottom-right and stays visible. - On comments the human creator stayed the PRIMARY avatar and name while the stack was crammed into the old badge slot, duplicating the identity and failing the "agent is primary" requirement. AgentAvatarStack gains a showName prop; with showName=false it now replaces the leading avatar for agent comments, and the name slot renders agent.name (+ dimmed · launcher.name). Non-agent comments are byte-identical to before; history-item keeps the default (names shown). Tests: add showName=false and external-MCP (no-launcher) coverage, assert no identity duplication. client tsc clean, 9 tests pass. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>