feat: add fixed RR stop-loss mode for manual live orders on all instances

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

tests/test_manual_sltp_lib.py

@@ -0,0 +1,32 @@
+from manual_sltp_lib import (
+    MANUAL_FIXED_RR_DEFAULT,
+    calc_tp_from_fixed_rr,
+    parse_fixed_rr,
+    resolve_open_sltp_prices,
+)
+
+
+def test_calc_tp_from_fixed_rr_long():
+    tp = calc_tp_from_fixed_rr("long", 100.0, 95.0, 1.5)
+    assert tp == 107.5
+
+
+def test_calc_tp_from_fixed_rr_short():
+    tp = calc_tp_from_fixed_rr("short", 100.0, 105.0, 1.5)
+    assert tp == 92.5
+
+
+def test_resolve_open_fixed_rr_mode():
+    sl, tp = resolve_open_sltp_prices(
+        "long",
+        100.0,
+        "fixed_rr",
+        {"sl": "95", "fixed_rr": "1.5"},
+    )
+    assert sl == 95.0
+    assert tp == 107.5
+
+
+def test_parse_fixed_rr_default():
+    assert parse_fixed_rr(None) == MANUAL_FIXED_RR_DEFAULT
+    assert parse_fixed_rr("2") == 2.0