fix(docs): correct .md documentation across errors, dynamics, filters, forecasts, momentum, numerics, oscillators, reversals, statistics, trends, volatility, volume

Deep review of all indicator categories verified .md headers against .cs WarmupPeriod, parameters, inputs, and outputs. Fixes include warmup corrections, parameter documentation, output type accuracy, and Pine Script alignment.

lib/errors/rsquared/Rsquared.md

@@ -3,17 +3,17 @@
 | Property         | Value                            |
 | ---------------- | -------------------------------- |
 | **Category**     | Error Metric                        |
-| **Inputs**       | Source (close)                          |
+| **Inputs**       | Actual vs Predicted (dual input)                          |
 | **Parameters**   | `period`                      |
-| **Outputs**      | Single series (R)                       |
-| **Output range** | $\geq 0$                     |
+| **Outputs**      | Single series (R²)                       |
+| **Output range** | $(-\infty, 1]$                     |
 | **Warmup**       | `period` bars                          |
 
 ### TL;DR
 
 - The Coefficient of Determination (R²) measures the proportion of variance in the actual values that is predictable from the predicted values.
 - Parameterized by `period`.
-- Output range: $\geq 0$.
+- Output range: $(-\infty, 1]$.
 - Requires `period` bars of warmup before first valid output (IsHot = true).
 - Validated against TA-Lib, Skender, and Tulip reference implementations where available.