[Improve] Tell Auto who the session owner is

[daniel-lxs]

Why

Auto compares a tool call with what the owner asked for, but it was never told who the owner is. Two things followed:

• A request such as "assign it to me", or a plan that said "I can assign it to you", followed by a call naming the owner by name or email, asked for approval although the owner had asked for exactly that.
• A call naming somebody else where the owner said "me" could run, because nothing showed it was a different person.

What

• Auto is given the session owner's name and email, only when the owner sent every message in the session. In a session other people wrote in, "me" is not always the owner, so nothing is added and those sessions are judged as before.
• Code marks which argument values are exactly the owner's name or email, so a look-alike (a longer name, another domain) is never taken for the owner.
• The questions about what the owner asked for and what plan they agreed to say how to use this. A tool's own "who am I" result counts as the owner under another name; a document that claims who the user is does not.
• A task's calls get the same treatment as the session agent's.

How to test

1. Turn Auto on for a session and connect a tracker-style integration.
2. Ask: "Which of Sam's issues are stale? Propose reassigning them to me, don't change anything yet." Then reply "yeah go ahead".
3. The reassignment calls name your account and run without an approval card.
4. In a fresh session ask "assign ISSUE-1 to me". A call that names a teammate asks for approval.

Unit tests cover the sender check, the exact match, and both call paths.

[roomote-community]

No code issues found. See task

• Task owner attribution can ignore a prior participant after the 20-message window (packages/db/src/lib/integration-tool-auto-task-context.ts:435).

_{Reviewed 951acdf}