feat(client): sprint 38 — free camera viewer, archetype strip, test fixes

- Add free camera mode (F4 toggle): WASD pan, scroll zoom, decoupled
  from player position (#898)
- Strip archetype-driven code: remove character_archetype, lattice_profile,
  and lattice color palettes from client (#882)
- Fix confrontation_monologue signal not firing in headless test mode (#867)
- Revive fog state behavioral tests: EXP_EXPLORED persistence, grow-only
  bounds, texture-resize copy, BoundaryWall handling (#879)
- Triage pre-existing test failures: fix examine_display dismiss timing,
  fog test position fragility, rendering snapshot assertions,
  time_display format (#871)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

client/scripts/snapshot_handler.gd

@@ -88,10 +88,6 @@ static func apply(snapshot: Dictionary) -> void:
 	else:
 		GameState.current_monologue = null
 
-	# #122: lattice_profile
-	if snapshot.has("lattice_profile") and snapshot.lattice_profile is String:
-		GameState.lattice_profile = snapshot.lattice_profile
-
 	# v6: player_stance (#449, D-053)
 	if snapshot.has("player_stance") and snapshot.player_stance is String:
 		GameState.player_stance = snapshot.player_stance