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/autoloads/game_state.gd

@@ -41,11 +41,6 @@ var nearby_interactions: Array = []  # [{entity_id, entity_type, distance, verbs
 # v5 fields (#414)
 var current_monologue: Variant = null  # {id, text, duration_seconds, priority, is_urgent} or null
 
-# #122 (D-032): Character lattice profile — selects monologue text colour palette.
-# "lattice_augmented" = detective, "lattice_baseline" = smuggler.
-# Server sends this field as part of the player's capability snapshot.
-var lattice_profile: String = "lattice_baseline"
-
 # v6 fields (#449, D-053, D-065)
 var player_stance: String = "Walk"  # Sprint/Walk/Careful/Crouch
 var player_inventory: Array = []  # [{item_id, name, slot}]
@@ -94,10 +89,8 @@ var debug_response: Variant = null
 # Format: user://saves/<game-id>/<filename>.sav or "" if no pending load.
 var pending_load_path: String = ""
 
-# #588: Character archetype chosen at character select screen.
-# "detective" or "smuggler". Set before game scene loads; sent in StartupMessage.
-# Default: "detective" — fallback for legacy saves without character.txt.
-var character_archetype: String = "detective"
+# #898: Free camera mode — camera decoupled from player, WASD pans camera directly.
+var free_camera_mode: bool = false
 
 # #705: Character visual descriptor — set by character_creation.gd on confirmation.
 # Passed to EntityRenderer for the player entity's CharacterVisual on game start.

client/scripts/autoloads/input_mapper.gd

@@ -68,7 +68,7 @@ func _process(_delta: float) -> void:
 	# D-054: Update facing angle from mouse position every frame
 	_update_facing_from_mouse()
 
-	if GameState.dialogue_active:
+	if GameState.dialogue_active or GameState.free_camera_mode:
 		return
 
 	# D-054: Send facing octant to server when it changes (even without movement)

client/scripts/autoloads/session_manager.gd

@@ -55,12 +55,11 @@ func new_game() -> String:
 
 
 ## Resume an existing game session by setting the active game-id.
-## Restores world_seed and character_archetype from the save directory.
+## Restores world_seed from the save directory.
 func resume_game(game_id: String) -> void:
 	GameState.current_game_id = game_id
 	var save_path := SAVES_DIR + game_id + "/"
 	GameState.world_seed = _read_seed_file(save_path)
-	GameState.character_archetype = _read_archetype_file(save_path)
 
 
 ## List all game directories under user://saves/ sorted by last-modified (most recent first).
@@ -171,29 +170,6 @@ func _read_seed_file(save_path: String) -> int:
 	return file.get_64() & 0x7FFFFFFFFFFFFFFF
 
 
-## Write character_archetype to save directory. Called after new_game() creates the dir.
-func save_character_archetype(game_id: String, archetype: String) -> void:
-	var save_path := SAVES_DIR + game_id + "/"
-	var file := FileAccess.open(save_path + "character.txt", FileAccess.WRITE)
-	if file == null:
-		push_error(
-			(
-				"SessionManager: failed to write character.txt: %s"
-				% error_string(FileAccess.get_open_error())
-			)
-		)
-		return
-	file.store_string(archetype)
-
-
-## Read character_archetype from save directory. Returns "detective" if missing (legacy saves).
-func _read_archetype_file(save_path: String) -> String:
-	var file := FileAccess.open(save_path + "character.txt", FileAccess.READ)
-	if file == null:
-		return "detective"
-	return file.get_as_text().strip_edges()
-
-
 func _find_newest_save(dir_path: String) -> String:
 	var dir := DirAccess.open(dir_path)
 	if dir == null:

client/scripts/autoloads/sim_bridge.gd

@@ -261,7 +261,6 @@ func _process(delta: float) -> void:  # gdlint:disable=max-returns
 		# Server blocks waiting for this before entering the tick loop.
 		var startup_bytes := Protocol.encode_startup_message(
 			GameState.world_seed,
-			GameState.character_archetype,
 			GameState.character_visual_descriptor
 		)
 		if startup_bytes.size() > 0: