fix(client): address PR #24 review — 5 critical bugs, 3 warnings, 8 suggestions

Critical:
- Protocol test assertions updated v6→v7 (test_protocol_v6.gd)
- Dialogue signal connections wired (option_selected→DialogueResponse,
  dialogue_dismissed→DialogueEnd sent to server via SimBridge)
- Consume-once race fixed: _consume_dialogue() checks is_dialogue_active()
  before re-showing; dialogue_id tracking prevents re-trigger during fade
- Dialogue box responsive: _update_layout() clamps width to MAX_WIDTH_PX
  (832px) or 65% viewport, height to 20% viewport (MAX_HEIGHT_RATIO)
- Auto-pause added: SimBridge.send_input(PAUSE) on dialogue open/close

Warnings:
- Test coverage: 16 new tests in test_protocol_v7.gd (pending_recognitions
  decode, current_dialogue, GameState, SimBridge mock data, insert colors)
- queue_redraw() optimization: early return when no entities and no pings
- Fixed 200px height → responsive 20% viewport via _update_layout()

Suggestions:
- WASD detection refactored to _WALK_AWAY_ACTIONS array loop
- Button colors reference Constants.INSERT_COLOR_TEXT/HOVER/ACTIVE
- Named constants: COLOR_TRANSITION_START, SILHOUETTE_APPEAR_THRESHOLD,
  SILHOUETTE_SIZE with explanatory comments
- Bounds check: MAX_PENDING_RECOGNITIONS=64 with truncation warning
- Mock dialogue sustained across ticks (not 1-tick flash)
- COLOR_PING coupling with cursor documented as intentional
- Consume helpers extracted: _consume_monologue(), _consume_dialogue()

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

client/scripts/protocol/protocol.gd

@@ -123,10 +123,17 @@ static func decode_snapshot(bytes: PackedByteArray) -> Variant:
 				})
 
 	# v7: pending_recognitions (#431, D-059/D-060) — cognitive delay fog entities
+	# Bounded: server sends at most ~50 pending recognitions per snapshot (practical limit
+	# given perception range). Excessive arrays are truncated to prevent allocation abuse.
+	const MAX_PENDING_RECOGNITIONS: int = 64
 	var pending_recognitions: Array = []
 	var raw_recognitions: Variant = raw.get("pending_recognitions")
 	if raw_recognitions is Array:
+		var count := 0
 		for raw_pr in raw_recognitions:
+			if count >= MAX_PENDING_RECOGNITIONS:
+				push_warning("Protocol: pending_recognitions truncated at %d entries" % MAX_PENDING_RECOGNITIONS)
+				break
 			if raw_pr is Dictionary and raw_pr.has("entity_id") and raw_pr.has("x") and raw_pr.has("y"):
 				pending_recognitions.append({
 					"entity_id": int(raw_pr["entity_id"]),
@@ -136,6 +143,7 @@ static func decode_snapshot(bytes: PackedByteArray) -> Variant:
 					"remaining_ticks": int(raw_pr.get("remaining_ticks", 0)),
 					"total_delay_ticks": int(raw_pr.get("total_delay_ticks", 1)),
 				})
+				count += 1
 
 	return {
 		"tick": tick,