fix(client): address PR #36 review — 10 items from Hoshe + Tyre

Critical:
- deactivate_insert() now called when selecting non-Insert spoke,
  cancelling with no selection, or pressing Escape while insert is
  active. Fixes simulation staying paused permanently after Insert.

Warnings:
- Checklist conditions with empty id excluded from get_results() and
  get_total_count() — prevents impossible-to-complete checklists.
  Warns at load time when empty-id conditions are found.
- _content_base now checks res://content/ first (exported builds),
  falls back to ../content for editor/dev mode.
- 26 new tests for D-054 functions: _angle_to_octant (8 octants),
  _snap_to_octant_dir (9 cases incl. zero/tiny), _wasd_to_world_dir
  (8 facing/movement combos). New test file: test_input_mapper_facing.gd.

Suggestions:
- Cached get_theme_default_font() in checklist overlay _ready().
- Documented InputMapper → GameState coupling as intentional.
- Documented YAML parser # truncation limitation.
- _insert_active reset on Escape dismiss (Tyre #3).
- SimBridge test mode SetFacing reads action_data.facing instead of
  InputMapper global (Tyre #4).
- Removed dead _facing_to_rotation() from entity_renderer.gd (Tyre #5).
- Fixed 2 failing facing indicator tests to use InputMapper.facing_angle
  instead of GameState.player_facing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

client/scripts/checklist/checklist_evaluator.gd

@@ -24,8 +24,15 @@ var _loaded: bool = false
 
 
 func _init() -> void:
-	var project_path := ProjectSettings.globalize_path("res://")
-	_content_base = project_path.path_join("../content")
+	# Content directory lives at repo root (content/), one level above the Godot
+	# project (client/). In editor/dev mode we resolve via the project path.
+	# In exported builds, content is expected at res://content/ (copied by export
+	# preset) — the globalize fallback won't exist, so check res:// first.
+	if DirAccess.dir_exists_absolute("res://content"):
+		_content_base = ProjectSettings.globalize_path("res://content")
+	else:
+		var project_path := ProjectSettings.globalize_path("res://")
+		_content_base = project_path.path_join("../content")
 
 
 ## Load checklist for a room. Clears per-room latches; cross-room latches persist.
@@ -52,6 +59,7 @@ func load_room(room_id: String) -> void:
 	var room_data := _load_checklist_file(room_path)
 	if room_data.has("conditions"):
 		_room_conditions = room_data["conditions"]
+		_warn_empty_ids(_room_conditions, room_path)
 
 	# Load cross-room checks (only on first load)
 	if _cross_conditions.is_empty():
@@ -59,6 +67,7 @@ func load_room(room_id: String) -> void:
 		var cross_data := _load_checklist_file(cross_path)
 		if cross_data.has("conditions"):
 			_cross_conditions = cross_data["conditions"]
+			_warn_empty_ids(_cross_conditions, cross_path)
 
 	_loaded = true
 
@@ -74,10 +83,13 @@ func evaluate() -> void:
 
 
 ## Returns array of {id, description, met} for all loaded conditions.
+## Conditions with empty id are excluded (invalid, cannot be latched).
 func get_results() -> Array:
 	var results: Array = []
 	for cond in _room_conditions + _cross_conditions:
 		var cid: String = cond.get("id", "")
+		if cid.is_empty():
+			continue
 		results.append({
 			"id": cid,
 			"description": cond.get("description", ""),
@@ -87,9 +99,13 @@ func get_results() -> Array:
 	return results
 
 
-## Total number of loaded conditions.
+## Total number of loaded conditions (excludes conditions with empty id).
 func get_total_count() -> int:
-	return _room_conditions.size() + _cross_conditions.size()
+	var count: int = 0
+	for cond in _room_conditions + _cross_conditions:
+		if not cond.get("id", "").is_empty():
+			count += 1
+	return count
 
 
 ## Number of latched (met) conditions.
@@ -116,6 +132,12 @@ func reset() -> void:
 	_loaded = false
 
 
+static func _warn_empty_ids(conditions: Array, path: String) -> void:
+	for i in conditions.size():
+		if conditions[i].get("id", "").is_empty():
+			push_warning("ChecklistEvaluator: condition at index %d in %s has empty id — will be excluded from results" % [i, path])
+
+
 # -- Condition evaluation ------------------------------------------------------
 
 func _evaluate_condition(cond: Dictionary) -> bool:
@@ -211,6 +233,9 @@ func _find_entity(entity_id: int) -> bool:
 # -- YAML parsing (checklist-specific) -----------------------------------------
 # Handles the constrained checklist YAML format: top-level key:value pairs,
 # a conditions array of flat dictionaries. No nested arrays or anchors.
+#
+# Limitation: unquoted values containing " #" are truncated at the comment marker.
+# Use quoted strings ("value # with hash") if values must contain literal hashes.
 
 func _load_checklist_file(path: String) -> Dictionary:
 	if not FileAccess.file_exists(path):