probe ignores paginated listTools cursor, audits only the first page

[royalpinto007]

Problem

probe reads res.tools once with zero cursor handling: servers with paginated tool lists get a partial audit presented as complete.

Where

src/transport/probe.ts (no cursor/nextCursor references in src/).

Acceptance

Add a failing test first with a fake client returning 2 pages, asserting the target contains both pages' tools. Then fix.