CVE-2026-77366: obsidian-tc tokens can access arbitrary configured vaults

Tool dispatch did not check the caller-supplied input.vault against the caller’s bound vault (ctx.vaultId); the folder ACL was a single global instance and the JWT carried no vault claim. As a result, any valid token could read, write, or delete any configured vault by passing input.vault, defeating multi-tenant isolation across ~90 tool sites. (resources/read was the only surface that already guarded this.)