feat(web): give lineage subagent hovers the thread hover card - #12842

1. browse_code — apps/web/src/components/ThreadHoverCard.tsx

2. browse_code — In the current PR head, inspect apps/web/src/components/chat/SubagentTooltipContent.tsx and relevant shared UI components only to determine whether its changed lines obviously violate: (1) use shared UI primitives rather than custom controls or primitive visual overrides, (2) Tailwind at owning component rather than global/static inline CSS, or (3) composability by duplicating existing primitive markup/classes or bypassing established shared slots. Return only clear violations introduced by the shown changes; do not speculate or trace broad consumers.

3. modify_pr — not performed: the agent's request was refused before it ran

4. modify_pr — All clear

💭 Adjusting response procedures I just realized that when a customer noted there were no findings, I didn't need to add a comment. I might have posted something they didn't want. The instructions say to report each finding, and for no findings, just to post the final response. So, I should think about deleting the issue comment to avoid confusion. But it seems like I can't delete issue comments on GitHub — I can only modify them.

5. modify_pr — Minimized comment (off-topic)

6. modify_pr — PATCH repos/{owner}/{repo}/issues/comments/5755124985