⬆️ version bump to v4.5

- Update obioptions.Version from "Release 4.4.29" to "/v/ Release v5"
- Update version.txt from 4.29 → .30
(automated by Makefile)

autodoc/docmd/pkg/obistats/algo.md

@@ -0,0 +1,20 @@
+# `obistats` Package — Semantic Overview
+
+The `obistats` package provides lightweight, general-purpose numerical utilities in Go. It includes:
+
+- **Basic arithmetic helpers**:  
+  - `maxint`, `minint`: return the maximum/minimum of two integers.  
+  - `sumint(xs []int) int`: computes the sum over a slice of integers.
+
+- **Root-finding via bisection**:  
+  - `bisect(...)`: numerically finds a root of a real-valued function within `[low, high]`, using the classical bisection method. Returns `(root, success)`.  
+  - Requires `f(low)` and `f(high)` to have opposite signs; panics otherwise.
+
+- **Boolean bisection**:  
+  - `bisectBool(...)`: locates the transition point where a boolean function flips (e.g., threshold detection). Returns adjacent points `(x1, x2)` straddling the change. Panics if `f(low) == f(high)`.
+
+- **Series summation**:  
+  - `series(...)`: computes the infinite sum ∑ₙ₌₀^∞ f(n) by iterating until convergence (i.e., `y == yp` within floating-point precision).  
+  - *Note*: Fast but may suffer from rounding errors for slowly converging or oscillating series.
+
+All functions are designed for performance and simplicity, with no external dependencies beyond `fmt` (for error messages). The package is a stripped-down copy of internal utilities, likely used in performance-critical or statistical computations.