[hkonsti]

Removes the failsafe from #119 (packages/api/src/mcp/pre-task-clients.ts and everything marked PRE-TASK CLIENTS): MCP clients whose session began before tasks had their calls without a task run for none, and were told the tool list changed. With it gone, every call but start_task, finish_task and send_feedback needs a task again, from any client.

Merge once no client is on it any more. Its calls are the only MCP requests logged with no task since #119 went out, so this should give no rows for a day or so first (set the date to when #119 was deployed):

SELECT a."agentId", count(*), max(a."createdAt")
FROM "AuditEntry" a
WHERE a.via = 'mcp' AND a."agentId" IS NOT NULL AND a."taskId" IS NULL
  AND a."createdAt" > '<deployed at>'
GROUP BY 1 LIMIT 50

An agent still showing up there has a client that never reloaded its tool list (or never keeps a session id); after this merges, its calls are refused until it reconnects.