feat(client): Sprint 12 — renderer fix, sound pipeline, medium-range indicators

#345: entity_renderer.gd already used entity_id; added regression tests
  confirming old "id" field is rejected and "entity_id" is accepted.

#447 (OQ-29): DIALOGUE_MAX_WIDTH = 1920 added to constants.gd. Full
  viewport width at target resolution (60 × TILE_SIZE), per D-061 Lead
  directive "max-width". Recorded as D-076 in decisions/perception.md.

#126: SoundIndicatorRenderer — fog-edge directional arrows for medium-range
  sound events (D-018). Node2D at z:951 in World scene. Color-coded per
  D-018/D-069 (neutral/voice/danger). GameState.medium_sound_events
  partitions Medium events from snapshot sound_events field. Tests added
  to test_rendering.gd; Hoshe's test_sound_indicators.gd stubs updated.

#125: Close-range stereo audio pipeline wired. AudioManager.play_sound_event()
  maps event_type to D-038 asset key (Footstep/FootstepSprint → sfx_footstep_*).
  GameState.close_sound_events partitions Close events. main.gd calls
  _play_close_sound_events() each snapshot tick. test_audio_bus_routing.gd
  Layer 4 stubs upgraded to real tests.

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

client/scripts/autoloads/audio_manager.gd

@@ -163,6 +163,33 @@ func stop_all_loops() -> void:
 		stop_loop(key)
 
 
+# --- Audio asset registry: event type → asset key (D-018, #125) ---
+# Maps server-sent sound event_type strings to audio asset keys.
+# Keys match filename stems in res://audio/ (scanned by _scan_registry).
+# Audio assets per D-038: footstep variants (walk / run).
+# No asset for Voice events in v0.1 — play_sound_event no-ops gracefully
+# (D-038: "renders as audio if asset exists, or visual indicator + monologue if not").
+const SOUND_EVENT_ASSETS: Dictionary = {
+	"Footstep":       "sfx_footstep_metal",
+	"FootstepWalk":   "sfx_footstep_metal",
+	"FootstepCareful":"sfx_footstep_metal",
+	"FootstepCrouch": "sfx_footstep_metal",
+	"FootstepSprint": "sfx_footstep_metal_run",
+	"FootstepRun":    "sfx_footstep_metal_run",
+}
+
+
+## Play a close-range sound event at a world tile position (D-018, #125).
+## event_type: server RangeCategory::Close event type string (e.g. "Footstep").
+## world_tile_pos: server tile coordinates — converted to world pixels internally.
+## No-ops if event_type has no registered asset or asset file is absent.
+func play_sound_event(event_type: String, world_tile_pos: Vector2) -> void:
+	var asset_key: String = SOUND_EVENT_ASSETS.get(event_type, "")
+	if asset_key.is_empty():
+		return
+	play_at(asset_key, world_tile_pos * Constants.TILE_SIZE)
+
+
 # --- Playback: spatial (D-018 close-range) ---
 
 ## Play a one-shot spatial sound at a world position (pixels).

client/scripts/autoloads/game_state.gd

@@ -54,6 +54,14 @@ var rng_seed: Variant = null
 # v7 fields (#431, D-059/D-060)
 var pending_recognitions: Array = []  # [{entity_id, x, y, z, remaining_ticks, total_delay_ticks}]
 
+# #126, D-018: Medium-range sound events for fog-edge directional indicators.
+# Format: [{x, y, event_type, range_category}] — server sends current medium events per tick.
+var medium_sound_events: Array = []
+
+# #125, D-018: Close-range sound events for positional 2D audio.
+# Format: [{x, y, event_type, range_category}] — consumed once per tick in main.gd.
+var close_sound_events: Array = []
+
 func apply_snapshot(snapshot: Dictionary) -> void:
 	current_snapshot = snapshot
 
@@ -157,6 +165,24 @@ func apply_snapshot(snapshot: Dictionary) -> void:
 	else:
 		rng_seed = null
 
+	# D-018: Sound events from server — partition by range_category.
+	# #126: Medium → fog-edge directional indicators.
+	# #125: Close → positional 2D audio via AudioManager.
+	if snapshot.has("sound_events") and snapshot.sound_events is Array:
+		medium_sound_events = []
+		close_sound_events = []
+		for se in snapshot.sound_events:
+			if not se is Dictionary:
+				continue
+			var rc: String = se.get("range_category", "")
+			if rc == "Medium":
+				medium_sound_events.append(se)
+			elif rc == "Close":
+				close_sound_events.append(se)
+	else:
+		medium_sound_events = []
+		close_sound_events = []
+
 	# v2: visible_tiles with visibility sectors
 	# Derives visible_positions when not explicitly provided (real server mode)
 	if snapshot.has("visible_tiles") and snapshot.visible_tiles is Array and snapshot.visible_tiles.size() > 0: