feat: add OKX options module with dual API, USDT/USDC convert, and docs

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/options/options_db.py

@@ -0,0 +1,62 @@
+"""期权模块 SQLite 表。"""
+from __future__ import annotations
+
+import sqlite3
+
+
+def init_options_tables(conn: sqlite3.Connection) -> None:
+    conn.execute(
+        """
+        CREATE TABLE IF NOT EXISTS options_trades (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            inst_id TEXT NOT NULL,
+            underlying TEXT NOT NULL,
+            opt_type TEXT NOT NULL,
+            strike REAL,
+            exp_time TEXT,
+            sheets INTEGER NOT NULL,
+            eth_amount REAL NOT NULL,
+            open_quote REAL,
+            premium_paid REAL,
+            status TEXT DEFAULT 'open',
+            close_quote REAL,
+            premium_received REAL,
+            realized_pnl REAL,
+            profit_alert_sent INTEGER DEFAULT 0,
+            signal_note TEXT,
+            exchange_ord_id TEXT,
+            close_ord_id TEXT,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            closed_at TIMESTAMP
+        )
+        """
+    )
+    conn.execute(
+        """
+        CREATE TABLE IF NOT EXISTS options_convert_log (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            from_ccy TEXT,
+            to_ccy TEXT,
+            rfq_sz REAL,
+            received_sz REAL,
+            quote_id TEXT,
+            status TEXT,
+            message TEXT,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+        )
+        """
+    )
+    conn.execute(
+        """
+        CREATE TABLE IF NOT EXISTS options_transfer_log (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            ccy TEXT,
+            amount REAL,
+            from_account TEXT,
+            to_account TEXT,
+            status TEXT,
+            message TEXT,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+        )
+        """
+    )