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/dynamics/chop/Chop.md

@@ -1,5 +1,7 @@
 # CHOP: Choppiness Index
 
+> *Choppiness index quantifies how range-bound a market is — high values mean sideways, low values mean trending.*
+
 | Property         | Value                            |
 | ---------------- | -------------------------------- |
 | **Category**     | Dynamic                        |
@@ -56,50 +58,6 @@ The denominator $\log_{10}(N)$ normalizes the output so that the theoretical max
 |--------|-----------|---------|------------|
 | $N$ | period | 14 | $N \geq 2$ |
 
-### Pseudo-code
-
-```
-Initialize:
-  trBuf = RingBuffer(period)
-  highBuf = RingBuffer(period)
-  lowBuf = RingBuffer(period)
-  trSum = 0
-  prevClose = NaN
-  logPeriod = log10(period)
-
-On each bar (high, low, close, isNew):
-  if !isNew: restore previous state
-
-  // True Range
-  if prevClose is valid:
-    TR = max(high - low, |high - prevClose|, |low - prevClose|)
-  else:
-    TR = high - low
-
-  // Rolling sum update
-  if trBuf is full:
-    trSum -= trBuf.Oldest
-  trBuf.Add(TR)
-  trSum += TR
-
-  highBuf.Add(high)
-  lowBuf.Add(low)
-
-  // Channel width
-  maxHigh = Max(highBuf)
-  minLow = Min(lowBuf)
-  channel = maxHigh - minLow
-
-  // Choppiness Index
-  if channel > 0 AND trSum > 0:
-    CHOP = 100 × log10(trSum / channel) / logPeriod
-  else:
-    CHOP = 50  // neutral fallback
-
-  prevClose = close
-  output = Clamp(CHOP, 0, 100)
-```
-
 ### Interpretation
 
 | CHOP Value | Market Regime | Strategy Implication |