`TargetUnit`, `AssistUnit`, `SpellTargetUnit`, `CheckInteractDistance` and `CanInspect` ignored target chains. `party1target`, `pettarget` and `raid3target` named nobody.
The reference's resolver `0x515970` takes a base token, then any number of `target` hops over held units' `UNIT_FIELD_TARGET` (`0x5159d3`-`0x515a2c`). Every one of these verbs resolves through it.
Changes:
- The app and the VM now share one parser, `parse_unit_token`.
- The reach map behind the two range verbs is keyed by guid, filled after the aura feed, and read through the VM's resolver.
- `ObjectStore::is_unit` replaces two private copies of the same test.
- Side effect: the reach feed's new order puts a few feeds after `feed_auras` where their order was undeclared before.
Tests: every chain form, a broken chain, junk after a hop and case folding. `TargetUnit("party1target")` works from Lua.
Fixes#669
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
