feat(dynamics): add PlusDI, MinusDI, PlusDM, MinusDM indicators

Complete thin Dx-composition wrapper indicators with full test coverage:

- PlusDi/MinusDi: Directional Indicator wrappers (DiPlus/DiMinus from Dx)
- PlusDm/MinusDm: Directional Movement wrappers (DmPlus/DmMinus from Dx)
- Individual validation tests per indicator directory (TALib, Skender, bounds)
- Combined unit tests (DiDm.Tests.cs) and validation tests (DiDm.Validation.Tests.cs)
- Quantower wrappers + tests for all 4 indicators
- PineScript v6 implementations with compensated RMA
- Normalized .md documentation for all indicators and categories
- 182 tests passing, 0 failures

lib/core/ha/Ha.md

@@ -1,5 +1,7 @@
 # HA: Heikin-Ashi
 
+> *The trend is your friend — but only if the noise doesn't make you abandon it at the first bump.*
+
 | Property         | Value                            |
 | ---------------- | -------------------------------- |
 | **Category**     | Core                        |
@@ -16,8 +18,6 @@
 - Requires `1` bars of warmup before first valid output (IsHot = true).
 - Validated against TA-Lib, Skender, and Tulip reference implementations where available.
 
-> "The trend is your friend — but only if the noise doesn't make you abandon it at the first bump." — Every trader, eventually
-
 HA transforms standard OHLC bars into smoothed Heikin-Ashi candles by averaging each component with its predecessor. The Close is the bar's four-price mean $(O+H+L+C)/4$, the Open is a recursive midpoint of the prior HA Open and HA Close, and High/Low are clamped extremes that guarantee the HA body always fits inside the HA wick. Unlike most indicators that reduce a bar to a single scalar, HA outputs a complete `TBar` — four smoothed prices per bar — making it a bar-to-bar transform rather than a bar-to-value reduction. The recursive Open gives HA an IIR character: each bar carries a decaying memory of the entire price history, which is what flattens trend noise but also why HA prices do not match any actual traded price.
 
 ## Historical Context
@@ -100,31 +100,6 @@ $$\text{WarmupPeriod} = 1$$
 
 HA is "hot" from bar 1. The seed bar uses $(O_0 + C_0)/2$ for HA_Open and produces valid output immediately. The recursive filter converges rapidly due to the $\beta = 0.5$ decay — after 7 bars, the contribution of the seed value is less than 0.4%.
 
-### Pseudo-code
-
-```
-function HA(bar, prevHaOpen, prevHaClose):
-    o, h, l, c ← bar.Open, bar.High, bar.Low, bar.Close
-
-    // Substitute last-valid for non-finite inputs
-    if !finite(o): o ← lastValidOpen
-    if !finite(h): h ← lastValidHigh
-    if !finite(l): l ← lastValidLow
-    if !finite(c): c ← lastValidClose
-
-    haClose ← FMA(o + h, 0.25, (l + c) × 0.25)
-
-    if firstBar:
-        haOpen ← (o + c) × 0.5
-    else:
-        haOpen ← (prevHaOpen + prevHaClose) × 0.5
-
-    haHigh ← max(h, haOpen, haClose)
-    haLow  ← min(l, haOpen, haClose)
-
-    return TBar(bar.Time, haOpen, haHigh, haLow, haClose, bar.Volume)
-```
-
 ### Output Interpretation
 
 | Candle Pattern | Meaning |