Remove dead code: legacy config fields, unused helpers/imports, stray files

- Delete test_ws_dual.py (standalone probe, unused) and a stale tracked log
- config.py: drop MarketSession enum, is_jpy_pair, candle_buffer_seconds,
  and the never-read legacy SignalConfig/XauStrategyConfig fields
- data_provider.py: drop uncalled get_latest_price/get_spread_estimate
- Remove unused imports (engine, telegram_bot, main, news_engine)
- test_all.py: drop/trim the corresponding defaults assertions (199 tests)
- CLAUDE.md updated to match

Zero behavior change: no production code read any removed field
(verified reference-by-reference); suite green at 199/199.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VPNF37MP9Kuv62B1VBrZ1b

config.py

@@ -27,14 +27,6 @@ class SignalStrength(Enum):
     STRONG_SELL = -2
 
 
-class MarketSession(Enum):
-    SYDNEY = "sydney"
-    TOKYO = "tokyo"
-    LONDON = "london"
-    NEW_YORK = "new_york"
-    OVERLAP_LONDON_NY = "london_ny_overlap"
-
-
 # ── Supported pairs ──────────────────────────────────────────────
 XAUUSD = "XAU/USD"
 
@@ -42,7 +34,7 @@ XAUUSD = "XAU/USD"
 # default_spread: round-trip cost per trade in price units, charged by
 # the backtester when --spread is not given.
 PAIR_INFO = {
-    XAUUSD: {"display": "XAU/USD", "pip_value": 0.10, "is_jpy_pair": False,
+    XAUUSD: {"display": "XAU/USD", "pip_value": 0.10,
              "price_precision": 2, "default_spread": 0.30},
 }
 
@@ -102,25 +94,8 @@ class TechnicalConfig:
 @dataclass
 class SignalConfig:
     """Signal scoring & filtering."""
-    min_confidence: float = 55.0
-
-    weights: Dict[str, float] = field(default_factory=lambda: {
-        "ema_trend": 1.0,
-        "rsi": 1.5,
-        "bollinger": 1.5,
-        "macd": 1.5,
-        "keltner": 1.5,
-        "roc": 1.5,
-        "candlestick": 1.0,
-        "divergence": 1.5,
-    })
-
     mtf_agreement_threshold: int = 2  # of 3 timeframes
-    cooldown_bars: int = 5
 
-    default_risk_pct: float = 1.0
-    default_rr_ratio: float = 2.0
-    atr_sl_multiplier: float = 1.5
     min_rr_ratio: float = 0.5
     # TP tightening (May 2026) was tuned on the pre-spread backtester.
     # Re-tested 2026-07-08 with $0.30 spread + gap fills: 0.8 nearly
@@ -199,25 +174,14 @@ class NewsConfig:
 
 @dataclass
 class XauStrategyConfig:
-    """XAU/USD strategy config.
-    Legacy gates (H4 RSI, H1 MACD, M15 score) removed in favor of
-    new momentum indicators (ROC, Keltner squeeze, ADX slope).
-    """
+    """XAU/USD strategy config."""
     enabled: bool = True
-    rsi_entry_threshold: float = 45.0
     tp_atr_multiplier: float = 1.0
     sl_atr_multiplier: float = 2.0
-    min_ema200_tfs: int = 2
-    allow_generic_trades: bool = True
     blocked_hours_utc: List[int] = field(default_factory=lambda: [0, 1, 2, 10, 11, 13, 16, 21])
     weekend_filter: bool = True
     min_atr_threshold: float = 1.0
     v2_sl_atr_multiplier: float = 2.0
-    buy_threshold_boost: int = 0
-    m5_confirmation_bars: int = 0
-    h4_rsi_gate: bool = False
-    h1_macd_gate: bool = False
-    rsi_zone: tuple = (40.0, 65.0)
     allowed_weekdays: List[int] = field(default_factory=lambda: [0, 1, 2, 3, 4, 6])  # Mon-Fri + Sun (Sydney open)
     sell_min_quality: List[str] = field(default_factory=lambda: ["A+", "A", "B"])
     # Volatility regimes in which SELL setups are allowed (low/normal-vol
@@ -351,7 +315,6 @@ class PlatformConfig:
     scan_timeframes: List[Timeframe] = field(
         default_factory=lambda: [Timeframe.M5, Timeframe.M15, Timeframe.H1, Timeframe.H4]
     )
-    candle_buffer_seconds: int = 10
     ws_cooldown_seconds: int = 300
 
     log_level: str = "INFO"