#22397: fix: warn on IEEE-754 precision loss for large numeric owner IDs (fail closed)

Related: #22284 (core senderIsOwner threading fix already merged in #22296) ## What this does Discord snowflake IDs are ~10^18, which exceeds `Number.MAX_SAFE_INTEGER`. If someone stores one as an unquoted number in their JSON config: ```json { "ownerAllowFrom": [1048693844750901359] } ``` ...JavaScript's JSON parser silently rounds it to `1048693844750901400` before any of our code runs. The rounded string doesn't match the real sender ID, so the user gets locked out of owner-only tools with no indication of why. This adds a `console.warn` in `resolveOwnerAllowFromList` when a numeric entry exceeds `MAX_SAFE_INTEGER`, telling the user to quote it as a string. No attempt to silently compensate for the bad config — matching fails closed, which is the correct security posture for owner gating. ## Changes - `command-auth.ts` — 8-line warn block in `resolveOwnerAllowFromList` - `command-control.test.ts` — test asserting `senderIsOwner === false` for precision-lost IDs