## Summary
- Some production workspaces have `SELECT` or `MULTI_SELECT`
fieldMetadata options that are missing the `id` property (e.g.
`[{"color":"yellow","label":"Draft","value":"DRAFT","position":0},
...]`).
- Adds a new upgrade command
`upgrade:1-20:backfill-select-field-option-ids` that queries all
SELECT/MULTI_SELECT fieldMetadata per workspace, detects options missing
an `id`, and backfills them with a UUID v4.
- The command is idempotent (no-op when all options already have ids),
supports `--dry-run`, and invalidates workspace caches after patching.
