inspector does not show green checkmarks for task extensions, even if returned for discover

[symdeb]

Describe the bug
inspector does not show green checkmarks for task extensions, even if returned for discover

To Reproduce
Steps to reproduce the behavior:
Return support for tasks in discover method response

Expected behavior
Show green checkmark

Logs
See picture

Additional context
N/A

[cliffhall]

Triage: Priority = Medium

Scored 8/16 with the priority rubric added to AGENTS.md in #1891, as part of the backlog triage in #1872. Added to project board #28 with Status Incoming — meaning filed and scored but not yet approved for work. A maintainer decides whether it moves to Todo.

Axis	Score	Reasoning
Severity / impact	4/5	The extension indicators don't reflect what server/discover actually returned, so the Inspector misreports the server's capabilities — the specific failure mode that costs a debugging tool its credibility.
Urgency / staleness	3/5	On the published v2, but nothing is blocked and it's newly filed.
Signal bonuses	+1	bug label (+1)
Total	8	Lands in the Medium band (6-8).

Related issues. None found in the open backlog; this one stands alone.

Scores are a starting point, not a verdict — the rubric is meant to be overruled when it's plainly wrong, provided the reason is written down.