feat: expand TA-Lib wrapper with math transform functions

- Add 13 new math transform functions: Cos, Sin, Tan, ACos, ASin, ATan, CosH, SinH, TanH, Ceil, Exp, Floor, Sqrt, Ln, Log10
- Implement proper TA-Lib bindings for all math transform operations
- Add comprehensive documentation comments to all new functions
- Standardize error handling across all wrapper functions using slog.Debug
- Refactor function definitions for consistency and maintainability

The wrapper now exposes a comprehensive set of mathematical operations from TA-Lib,
including trigonometric, hyperbolic, exponential, logarithmic, and rounding functions.
All functions follow the established pattern of vector element-wise transformations.

README.md

@@ -4,23 +4,25 @@ Go wrapper for selected [TA-Lib](https://ta-lib.org/) functions using [`purego`]
 
 This project currently exposes a small subset of TA-Lib functions:
 
+**Cycle Indicators (Hilbert Transform)**
 - `HT_DCPERIOD`
 - `HT_DCPHASE`
 - `HT_PHASOR`
 - `HT_SINE`
 - `HT_TRENDMODE`
-- `Add`
-- `Div`
-- `Max`
-- `MaxIndex`
-- `Min`
-- `MinIndex`
-- `MinMax`
-- `MinMaxIndex`
-- `Mult`
-- `Sub`
+
+**Math Operators**
+- `Add`, `Sub`, `Mult`, `Div`
+- `Max`, `MaxIndex`, `Min`, `MinIndex`
+- `MinMax`, `MinMaxIndex`
 - `Sum`
 
+**Math Transforms**
+- Trigonometric: `Cos`, `Sin`, `Tan`, `ACos`, `ASin`, `ATan`
+- Hyperbolic: `CosH`, `SinH`, `TanH`
+- Exponential/Logarithmic: `Exp`, `Ln`, `Log10`
+- Rounding: `Ceil`, `Floor`, `Sqrt`
+
 ## Requirements
 
 - Go `1.26`