Change: Close User-Confirmation Issues 2026-08-13

2026-08-13 — Close issues awaiting user-visible confirmation

Modify .phrase/docs/ISSUES.md to mark issue011–issue017, issue019, and issue020 as resolved.
Modify the corresponding issue detail files to record the closure date, responsible closure path, and that the commit is documentation-only.
Leave open issue018/task030: the locked source-instrumented 16 ms stress target is still unmet, so that item remains an active engineering debt rather than a pending user-confirmation gate.
Behavior/Risk: no runtime change. This pass closes the required user-visible acceptance gate for work that had already completed developer, repository, and dynamic GUI verification.

issue011–issue017, issue019, and issue020 now use [x] in the global issue index and their detail headers.
issue018 remains [ ]; task030 remains [ ].
No production or test code was changed.