Phase B.4b closes the M1-blocker discovered during the L.2g slice 1
visual test: the input dispatcher fires SelectDblLeft on click but
GameWindow.OnInputAction has no case for any Select* / UseSelected
action, so clicks silently die.
Spec creates the minimum new structure to close the gap:
- New static helper WorldPicker (BuildRay + Pick over WorldEntities)
- Rename _selectedTargetGuid -> _selectedGuid on GameWindow (unifies
combat + interaction selection per retail's single-target model)
- Three switch cases (SelectLeft, SelectDblLeft, UseSelected)
Two further L.2g handoff inaccuracies surfaced during exploration:
WorldPicker and SelectionState do NOT exist in src/ (handoff and
ISSUES #57 both claimed they did). BuildPickUp also doesn't exist;
only BuildUse / BuildUseWithTarget / BuildTeleToLifestone are present.
Spec accounts for the actual state and defers BuildPickUp + SelectionState
class extraction.
Visual verification scenario reuses the L.2g slice 1 reproducibility
recipe: one Holtburg inn doorway log captures both L.2g + B.4b.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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