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/momentum/cfb/Cfb.md

@@ -1,5 +1,7 @@
 # CFB: Jurik Composite Fractal Behavior
 
+> *Mark Jurik's CFB is not a momentum indicator. It is a stopwatch for chaos.*
+
 | Property         | Value                            |
 | ---------------- | -------------------------------- |
 | **Category**     | Momentum                        |
@@ -16,8 +18,6 @@
 - Requires `maxLen` bars (192 default) of warmup before first valid output (IsHot = true).
 - Validated against TA-Lib, Skender, and Tulip reference implementations where available.
 
-> "Mark Jurik's CFB is not a momentum indicator. It is a stopwatch for chaos."
-
 The Composite Fractal Behavior index measures trend duration by analyzing fractal efficiency across 96 simultaneous lookback periods (2 to 192 bars by default). Rather than asking "how strong is the trend," CFB asks "how long has the market been moving efficiently." The answer: a single integer representing the dominant trending timeframe. Use CFB to dynamically tune other indicators: instead of RSI(14), use RSI(CFB).
 
 ## Historical Context