feat: add time-based multiplier sizing, pause-after-win, and outcome-based win detection

- Time-based bet sizing multiplier (SNIPER_MULTIPLIERS, UTC+8 windows)
- Pause N rounds per asset after win (SNIPER_PAUSE_ROUNDS_AFTER_WIN)
- Win detection via payoutNumerators outcome check instead of redeem value threshold

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

.env.example

@@ -152,6 +152,18 @@ SNIPER_TIER3_PRICE=0.01  # Lowest price, largest allocation (50%)
 # Example: 30 shares → 6@3c + 9@2c + 15@1c
 SNIPER_MAX_SHARES=15
 
+# ── Sniper Sizing Multiplier (UTC+8) ───────────────────────
+# Time-based bet sizing multiplier. Format: HH:MM-HH:MM:factor,...
+# Multiplies SNIPER_MAX_SHARES during the specified time windows.
+# Default = 1.0x outside any window.
+# Example: US afternoon bump + Asia morning discount
+SNIPER_MULTIPLIERS=21:00-00:00:1.41,06:00-12:00:0.85
+
+# ── Sniper Pause After Win ─────────────────────────────────
+# Number of 5-min rounds to pause an asset after a win is detected.
+# Set to 0 to disable.
+SNIPER_PAUSE_ROUNDS_AFTER_WIN=3
+
 # ── Sniper Session Schedule (all times UTC+8) ──────────────
 # Format: HH:MM-HH:MM,HH:MM-HH:MM (comma-separated sessions)
 # Assets without a schedule entry are always active.