feat: TA-Lib candlestick patterns — doji-star/gap/high-wave/hikkake (part 4 of 9) (#135)

* feat: add doji-star, gap, high-wave and hikkake candlestick patterns

Five patterns, all `Input = Candle`, `Output = f64`:

- Evening Doji Star (CDLEVENINGDOJISTAR) — bearish top reversal: long white bar,
  a doji gapping up, then a black bar closing deep into the first body; -1
  (penetration configurable, default 0.3).
- Morning Doji Star (CDLMORNINGDOJISTAR) — bullish bottom reversal mirror; +1.
- Gap Side-by-Side White (CDLGAPSIDESIDEWHITE) — two similar white candles
  opening side by side after a gap, a continuation; gap up +1, gap down -1.
- High-Wave (CDLHIGHWAVE) — a small body with very long shadows on both sides,
  an extreme indecision flag; +1 on detection.
- Hikkake (CDLHIKKAKE) — an inside bar followed by a failed breakout (a trap);
  bullish +1, bearish -1.

Counter 259 -> 264 (mod-count == lib counted block; FAMILIES total 254 -> 259).

* chore: sync indicator count to 264

---------

Co-authored-by: wickra-bot <wickra-bot@users.noreply.github.com>

bindings/python/tests/test_new_indicators.py

@@ -583,6 +583,26 @@ CANDLE_SCALAR = {
         lambda: ta.RickshawMan(),
         lambda ind, h, l, c, v: ind.batch(c, h, l, c),
     ),
+    "EveningDojiStar": (
+        lambda: ta.EveningDojiStar(),
+        lambda ind, h, l, c, v: ind.batch(c, h, l, c),
+    ),
+    "MorningDojiStar": (
+        lambda: ta.MorningDojiStar(),
+        lambda ind, h, l, c, v: ind.batch(c, h, l, c),
+    ),
+    "GapSideBySideWhite": (
+        lambda: ta.GapSideBySideWhite(),
+        lambda ind, h, l, c, v: ind.batch(c, h, l, c),
+    ),
+    "HighWave": (
+        lambda: ta.HighWave(),
+        lambda ind, h, l, c, v: ind.batch(c, h, l, c),
+    ),
+    "Hikkake": (
+        lambda: ta.Hikkake(),
+        lambda ind, h, l, c, v: ind.batch(c, h, l, c),
+    ),
 }
 
 
@@ -1731,6 +1751,39 @@ def test_rickshaw_man_reference():
     t = ta.RickshawMan()
     assert t.update((10.0, 12.0, 8.0, 10.0, 1.0, 0)) == pytest.approx(1.0)
 
+
+def test_evening_doji_star_reference():
+    t = ta.EveningDojiStar()
+    assert t.update((10.0, 15.1, 9.9, 15.0, 1.0, 0)) == pytest.approx(0.0)
+    assert t.update((17.0, 17.1, 16.9, 17.0, 1.0, 1)) == pytest.approx(0.0)
+    assert t.update((16.0, 16.1, 11.9, 12.0, 1.0, 2)) == pytest.approx(-1.0)
+
+
+def test_morning_doji_star_reference():
+    t = ta.MorningDojiStar()
+    assert t.update((15.0, 15.1, 9.9, 10.0, 1.0, 0)) == pytest.approx(0.0)
+    assert t.update((8.0, 8.1, 7.9, 8.0, 1.0, 1)) == pytest.approx(0.0)
+    assert t.update((9.0, 13.1, 8.9, 13.0, 1.0, 2)) == pytest.approx(1.0)
+
+
+def test_gap_side_by_side_white_reference():
+    t = ta.GapSideBySideWhite()
+    assert t.update((10.0, 11.1, 9.9, 11.0, 1.0, 0)) == pytest.approx(0.0)
+    assert t.update((13.0, 14.1, 12.9, 14.0, 1.0, 1)) == pytest.approx(0.0)
+    assert t.update((13.0, 14.1, 12.9, 14.0, 1.0, 2)) == pytest.approx(1.0)
+
+
+def test_high_wave_reference():
+    t = ta.HighWave()
+    assert t.update((10.0, 12.0, 8.0, 10.3, 1.0, 0)) == pytest.approx(1.0)
+
+
+def test_hikkake_reference():
+    t = ta.Hikkake()
+    assert t.update((10.0, 15.0, 5.0, 12.0, 1.0, 0)) == pytest.approx(0.0)
+    assert t.update((11.0, 13.0, 8.0, 12.0, 1.0, 1)) == pytest.approx(0.0)
+    assert t.update((9.0, 12.0, 6.0, 7.0, 1.0, 2)) == pytest.approx(1.0)
+
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