fix(ui): address PR #52 review — 10 items across Hoshe, Tyre, Araminta (#535)

Critical: bump PROTOCOL_VERSION 8→9 for conversation_events/ended fields.

Hoshe review:
- Dirty flag (_log_dirty) prevents per-frame O(n) BBCode rebuild
- BBCode injection: _escape_bbcode() replaces [ with [lb] on server text
- D-064 regression: dialogue_active cleared in fade callback, not before
- YAML quoting: remove unnecessary quotes from numeric values

Tyre review:
- Carry-forward for dialogue_response, conversation_events, conversation_ended
  in receive_bytes() — arrays merge, scalar falls through
- pause_requested/unpause_requested signals route through main.gd input
  recording (_pending_record_inputs) for #507 replay determinism
- Fix version comments: dialogue_response is v8 (#305), not v9
- Remove dead _active_overheard dictionary

Araminta review:
- Passive lines: ┃ glyph prefix + _desaturate() for name colours
- Active conversation entries pinned (no timeout), unpinned with timestamp
  reset on conversation end
- _enforce_contrast(): minimum luminance floor for name colour readability
- Simplified 1-on-1 attribution: "Speaker:" instead of "Speaker → You:"

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

client/data/dialogue-theme.yaml

@@ -37,11 +37,11 @@ speech_color: "#c8d0e0"
 # Base opacity multiplier for non-player-centric lines.
 # 1.0 = full opacity, 0.0 = invisible.
 # ============================================================
-passive_opacity: "0.9"
+passive_opacity: 0.9
 
 # ============================================================
 # ENTRY TIMING
 # All entry types share the same lifetime and fade duration.
 # ============================================================
-entry_lifetime_seconds: "15.0"
-entry_fade_seconds: "3.0"
+entry_lifetime_seconds: 15.0
+entry_fade_seconds: 3.0

client/scripts/autoloads/game_state.gd

@@ -59,10 +59,12 @@ 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}]
 
+# v8 fields (#305, D-028): NPC follow-up after player dialogue choice
+var dialogue_response: Variant = null  # {line_id, text, speaker_entity_id}
+
 # v9 fields (#535, D-078): Overheard NPC-to-NPC conversations
 var conversation_events: Array = []  # [{speaker_id, target_id, speaker_name, target_name, occluded_line}]
 var conversation_ended: Array = []  # [{speaker_id, target_id}]
-var dialogue_response: Variant = null  # {line_id, text, speaker_entity_id} — NPC follow-up after player choice
 
 # #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.
@@ -186,7 +188,7 @@ func apply_snapshot(snapshot: Dictionary) -> void:
 	else:
 		conversation_ended = []
 
-	# v9: dialogue_response (#535, D-028) — NPC follow-up after player choice
+	# v8: dialogue_response (#305, D-028) — NPC follow-up after player choice
 	if snapshot.has("dialogue_response") and snapshot.dialogue_response is Dictionary:
 		dialogue_response = snapshot.dialogue_response
 	else:

client/scripts/autoloads/sim_bridge.gd

@@ -241,6 +241,17 @@ func receive_bytes(bytes: PackedByteArray) -> void:
 			snapshot["current_monologue"] = _last_snapshot["current_monologue"]
 		if snapshot.get("current_dialogue") == null and _last_snapshot.get("current_dialogue") != null:
 			snapshot["current_dialogue"] = _last_snapshot["current_dialogue"]
+		# #535: Carry forward one-shot dialogue events (arrays merge, scalar falls through)
+		if snapshot.get("dialogue_response") == null and _last_snapshot.get("dialogue_response") != null:
+			snapshot["dialogue_response"] = _last_snapshot["dialogue_response"]
+		var old_conv_events: Array = _last_snapshot.get("conversation_events", [])
+		if old_conv_events.size() > 0:
+			var new_conv_events: Array = snapshot.get("conversation_events", [])
+			snapshot["conversation_events"] = old_conv_events + new_conv_events
+		var old_conv_ended: Array = _last_snapshot.get("conversation_ended", [])
+		if old_conv_ended.size() > 0:
+			var new_conv_ended: Array = snapshot.get("conversation_ended", [])
+			snapshot["conversation_ended"] = old_conv_ended + new_conv_ended
 	_last_snapshot = snapshot
 
 # Drain the outbound buffer. Returns raw input entries for batch encoding.

client/scripts/main.gd

@@ -62,6 +62,8 @@ func _ready() -> void:
 		dialogue_box.option_selected.connect(_on_dialogue_option_selected)
 		dialogue_box.dialogue_dismissed.connect(_on_dialogue_dismissed)
 		dialogue_box.confrontation_monologue.connect(_on_confrontation_monologue)
+		dialogue_box.pause_requested.connect(_on_dialogue_pause_requested)
+		dialogue_box.unpause_requested.connect(_on_dialogue_unpause_requested)
 
 	# #496: Print gauntlet session summary on disconnect
 	if gauntlet_hud:
@@ -389,6 +391,20 @@ func _on_confrontation_monologue(text: String, duration: float) -> void:
 	monologue_display.show_monologue(text, duration, 3, true)
 
 
+# D-061: Auto-pause on dialogue open — routed through input recording (#507, Tyre #3)
+func _on_dialogue_pause_requested() -> void:
+	var input := {"action": InputMapper.Action.PAUSE, "timestamp_msec": Time.get_ticks_msec()}
+	SimBridge.send_input(input)
+	_pending_record_inputs.append(input)
+
+
+# D-061: Auto-unpause on dialogue close — routed through input recording (#507, Tyre #3)
+func _on_dialogue_unpause_requested() -> void:
+	var input := {"action": InputMapper.Action.UNPAUSE, "timestamp_msec": Time.get_ticks_msec()}
+	SimBridge.send_input(input)
+	_pending_record_inputs.append(input)
+
+
 # D-064: Handle walk-away → send WalkAway{npc_id} to server
 func _on_dialogue_dismissed() -> void:
 	SimBridge.send_input({

client/scripts/protocol/protocol.gd

@@ -11,7 +11,7 @@ class_name Protocol
 
 ## Protocol version — must match server PROTOCOL_VERSION in bridge/types.rs.
 ## Reject snapshots where version != this value.
-const PROTOCOL_VERSION: int = 8
+const PROTOCOL_VERSION: int = 9
 
 
 # -- Decode: bytes from server → GDScript types --------------------------------

client/ui/dialogue_box.gd

@@ -7,20 +7,25 @@ extends Control
 # InsertOverlay (CanvasLayer 10, z-layer 6) — diegetic, insert-styled.
 # D-063: Confrontation options render italic, trigger monologue beat before send.
 # D-064: Walk-away via WASD dismisses active conversation (log entries persist).
-# D-078: Overheard NPC-NPC lines shown at reduced opacity, no response options.
+#        dialogue_active held until fade completes (D-064 auto-pause spec).
+# D-078: Overheard NPC-NPC lines prefixed with ┃ glyph + desaturated colours.
 
 signal option_selected(response_id: String, text: String)
 signal dialogue_dismissed  # Walk-away or conversation end
 signal confrontation_monologue(text: String, duration: float)  # D-063: beat monologue
+signal pause_requested   # D-061: auto-pause — main.gd routes through input recording (#507)
+signal unpause_requested  # D-061: auto-unpause
 
 @onready var panel: PanelContainer = $PanelContainer
 @onready var dialogue_log: RichTextLabel = $PanelContainer/MarginContainer/VBoxContainer/DialogueLog
 @onready var options_container: VBoxContainer = $PanelContainer/MarginContainer/VBoxContainer/OptionsContainer
 
 # -- Log state --
-var _log_entries: Array[Dictionary] = []  # {speaker, target, text, is_passive, timestamp_msec}
-var _active_overheard: Dictionary = {}  # "speaker_id:target_id" -> true
+# Entry format: {speaker, target, text, is_passive, pinned, timestamp_msec}
+# pinned entries do not expire (active conversation lines, Araminta review).
+var _log_entries: Array[Dictionary] = []
 var _in_player_conversation: bool = false
+var _log_dirty: bool = false  # Dirty flag — prevents per-frame O(n) BBCode rebuild (Hoshe #1)
 
 # -- Option state --
 var _option_controls: Array[Control] = []
@@ -54,6 +59,9 @@ const CONFRONTATION_BEAT_DURATION: float = 1.5  # D-063: pause before sending
 const CONFRONTATION_DIM_ALPHA: float = 0.7  # D-063: dialogue box dims during beat
 const CONFRONTATION_MONOLOGUE_KEY: String = "dialogue.confrontation_beat"
 const PLAYER_NAME: String = "You"
+const PASSIVE_GLYPH: String = "\u2503 "  # ┃ prefix for overheard lines (Araminta review)
+const PASSIVE_DESATURATION: float = 0.4  # Desaturate passive name colours by this factor
+const MIN_CONTRAST_LUMINANCE: float = 0.25  # Floor for name colour brightness against dark BG
 
 # D-064: movement actions that trigger walk-away
 const _WALK_AWAY_ACTIONS: Array[StringName] = [
@@ -74,6 +82,9 @@ func _ready() -> void:
 
 func _process(_delta: float) -> void:
 	_expire_entries()
+	if _log_dirty:
+		_log_dirty = false
+		_rebuild_log()
 
 
 func _unhandled_input(event: InputEvent) -> void:
@@ -152,16 +163,19 @@ func _update_layout() -> void:
 
 ## Append a dialogue line to the log.
 ## speaker/target: display names. text: the spoken line.
-## is_passive: true for overheard NPC-NPC (renders at reduced opacity).
+## is_passive: true for overheard NPC-NPC (renders with ┃ prefix + desaturated).
+## Active conversation entries are pinned (no timeout) while _in_player_conversation.
 func append_line(speaker: String, target: String, text: String, is_passive: bool = false) -> void:
+	var pinned := not is_passive and _in_player_conversation
 	_log_entries.append({
 		"speaker": speaker,
 		"target": target,
 		"text": text,
 		"is_passive": is_passive,
+		"pinned": pinned,
 		"timestamp_msec": Time.get_ticks_msec(),
 	})
-	_rebuild_log()
+	_log_dirty = true
 	_ensure_visible()
 
 
@@ -172,18 +186,12 @@ func append_conversation_event(event: Dictionary) -> void:
 	var text: String = event.get("occluded_line", "")
 	if text.is_empty():
 		return
-	var pair_key := "%s:%s" % [event.get("speaker_id", 0), event.get("target_id", 0)]
-	_active_overheard[pair_key] = true
 	append_line(speaker, target, text, true)
 
 
-## Handle conversation_ended — remove pair from active tracking.
-func on_conversation_ended(event: Dictionary) -> void:
-	var pair_key := "%s:%s" % [event.get("speaker_id", 0), event.get("target_id", 0)]
-	_active_overheard.erase(pair_key)
-	# Also try the reverse pair
-	var reverse_key := "%s:%s" % [event.get("target_id", 0), event.get("speaker_id", 0)]
-	_active_overheard.erase(reverse_key)
+## Handle conversation_ended — no-op currently (entries expire via timeout).
+func on_conversation_ended(_event: Dictionary) -> void:
+	pass
 
 
 ## Append the player's chosen response to the log.
@@ -221,23 +229,36 @@ func show_dialogue(npc_name: String, speech: String, options: Array = []) -> voi
 	# D-069: Dialogue dip
 	AudioManager.apply_dip("dialogue")
 
-	# D-061: auto-pause in single-player
-	SimBridge.send_input({"action": InputMapper.Action.PAUSE, "timestamp_msec": Time.get_ticks_msec()})
+	# D-061: auto-pause — signal to main.gd for input recording (#507)
+	pause_requested.emit()
 
 
 ## End active player conversation — clears options but preserves log.
+## D-064: dialogue_active held until fade completes.
 func _end_player_conversation() -> void:
 	_in_player_conversation = false
 	_clear_options()
 	mouse_filter = Control.MOUSE_FILTER_IGNORE
 
+	# Unpin all entries and reset their timestamps so timeout starts now (Araminta review)
+	var now := Time.get_ticks_msec()
+	for entry in _log_entries:
+		if entry.pinned:
+			entry.pinned = false
+			entry.timestamp_msec = now
+	_log_dirty = true
+
 	# D-069: Clear dialogue/confrontation dip
 	AudioManager.clear_dip()
 
-	# D-061: unpause
-	SimBridge.send_input({"action": InputMapper.Action.UNPAUSE, "timestamp_msec": Time.get_ticks_msec()})
+	# D-061: unpause — signal to main.gd for input recording (#507)
+	unpause_requested.emit()
 
-	GameState.dialogue_active = false
+	# D-064: dialogue_active stays true — cleared after fade completes in hide callback.
+	# If log entries still exist, panel stays visible and entries expire via timeout.
+	# If no entries, hide immediately with fade.
+	if _log_entries.is_empty():
+		hide_dialogue()
 
 
 ## Hide the entire panel with fade.
@@ -247,6 +268,7 @@ func hide_dialogue() -> void:
 
 	if _in_player_conversation:
 		_end_player_conversation()
+		return  # _end_player_conversation may call hide_dialogue if log is empty
 
 	_is_showing = false
 
@@ -256,6 +278,7 @@ func hide_dialogue() -> void:
 	_active_tween.tween_property(panel, "modulate:a", 0.0, FADE_OUT)
 	_active_tween.tween_callback(func():
 		visible = false
+		GameState.dialogue_active = false  # D-064: unblock movement after fade completes
 	)
 
 
@@ -364,10 +387,11 @@ func _rebuild_log() -> void:
 	var now := Time.get_ticks_msec()
 	var bbcode := ""
 	for entry in _log_entries:
-		var age_sec: float = (now - entry.timestamp_msec) / 1000.0
 		var alpha: float = 1.0
-		if age_sec > _entry_lifetime:
-			alpha = clampf(1.0 - (age_sec - _entry_lifetime) / _entry_fade, 0.0, 1.0)
+		if not entry.pinned:
+			var age_sec: float = (now - entry.timestamp_msec) / 1000.0
+			if age_sec > _entry_lifetime:
+				alpha = clampf(1.0 - (age_sec - _entry_lifetime) / _entry_fade, 0.0, 1.0)
 		if entry.is_passive:
 			alpha *= _passive_opacity
 		if alpha <= 0.0:
@@ -380,32 +404,83 @@ func _rebuild_log() -> void:
 
 
 ## Format a single log entry as BBCode.
+## Hoshe #2: escape BBCode brackets in server-sourced strings.
+## Araminta: passive lines get ┃ prefix + desaturated colours.
+## Non-blocking: 1-on-1 player dialogue simplifies to "Speaker:" (no → You).
 func _format_entry(entry: Dictionary, alpha: float) -> String:
+	var speaker: String = _escape_bbcode(entry.speaker)
+	var target: String = _escape_bbcode(entry.target)
+	var text: String = _escape_bbcode(entry.text)
+	var is_passive: bool = entry.is_passive
+
 	var speaker_color := _color_for_name(entry.speaker)
 	var target_color := _color_for_name(entry.target)
 
-	# Apply alpha to all colors in this line
+	# Desaturate passive name colours (Araminta review)
+	if is_passive:
+		speaker_color = _desaturate(speaker_color, PASSIVE_DESATURATION)
+		target_color = _desaturate(target_color, PASSIVE_DESATURATION)
+
 	var sc := _color_with_alpha(speaker_color, alpha)
-	var tc := _color_with_alpha(target_color, alpha)
 	var ac := _color_with_alpha(_arrow_color, alpha)
+	var tc := _color_with_alpha(target_color, alpha)
 	var txc := _color_with_alpha(_speech_color, alpha)
 
-	return "[color=%s][b]%s[/b][/color][color=%s] \u2192 [/color][color=%s][b]%s[/b][/color][color=%s]: %s[/color]" % [
-		sc, entry.speaker, ac, tc, entry.target, txc, entry.text
-	]
+	var prefix := PASSIVE_GLYPH if is_passive else ""
+
+	# Non-blocking: simplify 1-on-1 player dialogue — no arrow for Speaker → You or You → Speaker
+	var involves_player := entry.speaker == PLAYER_NAME or entry.target == PLAYER_NAME
+	if involves_player and not is_passive:
+		# Just "Speaker: text" or "You: text"
+		return "%s[color=%s][b]%s[/b][/color][color=%s]: %s[/color]" % [
+			prefix, sc, speaker, txc, text
+		]
+	else:
+		# Full "Speaker → Target: text" for overheard
+		return "%s[color=%s][b]%s[/b][/color][color=%s] \u2192 [/color][color=%s][b]%s[/b][/color][color=%s]: %s[/color]" % [
+			prefix, sc, speaker, ac, tc, target, txc, text
+		]
 
 
-## Get a stable color for a character name.
+## Escape BBCode bracket characters in server-sourced text (Hoshe #2).
+static func _escape_bbcode(text: String) -> String:
+	return text.replace("[", "[lb]")
+
+
+## Get a stable color for a character name, with contrast floor enforcement.
 func _color_for_name(char_name: String) -> Color:
 	if char_name == PLAYER_NAME:
 		return _player_color
 	if _npc_colors.is_empty():
 		return _speech_color
-	var idx := char_name.hash() % _npc_colors.size()
-	# hash() can return negative in GDScript — use abs
-	if idx < 0:
-		idx = -idx
-	return _npc_colors[idx]
+	var idx := absi(char_name.hash()) % _npc_colors.size()
+	var color := _npc_colors[idx]
+	return _enforce_contrast(color)
+
+
+## Enforce minimum luminance so name colours remain readable against dark BG (Araminta #3).
+static func _enforce_contrast(color: Color) -> Color:
+	var lum := color.r * 0.299 + color.g * 0.587 + color.b * 0.114
+	if lum < MIN_CONTRAST_LUMINANCE:
+		var boost := MIN_CONTRAST_LUMINANCE / maxf(lum, 0.001)
+		return Color(
+			minf(color.r * boost, 1.0),
+			minf(color.g * boost, 1.0),
+			minf(color.b * boost, 1.0),
+			color.a
+		)
+	return color
+
+
+## Desaturate a colour by a factor (0.0 = no change, 1.0 = full greyscale).
+static func _desaturate(color: Color, amount: float) -> Color:
+	var grey := color.r * 0.299 + color.g * 0.587 + color.b * 0.114
+	return Color(
+		lerpf(color.r, grey, amount),
+		lerpf(color.g, grey, amount),
+		lerpf(color.b, grey, amount),
+		color.a
+	)
 
 
 ## Convert a Color to a hex string with alpha baked in.
@@ -415,29 +490,44 @@ static func _color_with_alpha(base: Color, alpha: float) -> String:
 
 # -- Entry expiry --
 
-## Remove fully expired entries. Hide panel if nothing remains.
+## Remove fully expired entries. Mark dirty if any fading entries exist.
+## Pinned entries (active conversation) skip expiry entirely (Araminta #2).
 func _expire_entries() -> void:
 	if _log_entries.is_empty():
 		return
 	var now := Time.get_ticks_msec()
 	var total_lifetime_msec: int = int((_entry_lifetime + _entry_fade) * 1000.0)
-	var had_entries := _log_entries.size() > 0
+	var removed := false
+	var has_fading := false
 
-	# Remove expired entries from the front (oldest first)
+	# Remove expired non-pinned entries from the front (oldest first)
 	while _log_entries.size() > 0:
-		var age: int = now - _log_entries[0].timestamp_msec
+		var entry: Dictionary = _log_entries[0]
+		if entry.pinned:
+			break  # Pinned entries never expire
+		var age: int = now - entry.timestamp_msec
 		if age < total_lifetime_msec:
+			# Check if this entry is in the fading phase
+			if age > int(_entry_lifetime * 1000.0):
+				has_fading = true
 			break
 		_log_entries.remove_at(0)
+		removed = true
 
-	# Rebuild if entries were removed
-	if had_entries and _log_entries.size() == 0:
-		_rebuild_log()
-		if not _in_player_conversation:
-			hide_dialogue()
-	elif had_entries:
-		# Rebuild to update fading entries
-		_rebuild_log()
+	# Check remaining entries for fading state
+	if not has_fading:
+		for entry in _log_entries:
+			if not entry.pinned:
+				var age: int = now - entry.timestamp_msec
+				if age > int(_entry_lifetime * 1000.0):
+					has_fading = true
+					break
+
+	if removed or has_fading:
+		_log_dirty = true
+
+	if removed and _log_entries.is_empty() and not _in_player_conversation:
+		hide_dialogue()
 
 
 # -- Visibility --