⬆️ 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/obiutils/cast_interface.md

@@ -0,0 +1,15 @@
+# `obiutils` Package — Semantic Feature Summary
+
+This Go package provides a set of utility functions for **type conversion**, **casting validation**, and **map/slice transformation** in a flexible, error-tolerant manner.
+
+- `InterfaceToString(i interface{})`: Converts any value to a string, preferring the `Stringer` interface if implemented.
+- `CastableToInt(i interface{})`: Checks whether a value is *numerically castable* to an `int` (supports all numeric types).
+- `InterfaceToBool(i interface{})`: Safely converts various input types (`bool`, numeric, string like `"true"`, `"1"`, etc.) to `bool`; returns a custom error for unsupported types.
+- `InterfaceToInt(i interface{})`: Converts numeric or string representations to an `int`, with precise error handling.
+- `InterfaceToFloat64(i interface{})`: Converts numeric or string types to `float64`, using standard parsing.
+- `MapToMapInterface(m interface{})`: Converts specialized map types (e.g., read-only or concurrency-safe maps) to `map[string]interface{}` via reflection.
+- `InterfaceToIntMap(i interface{})`: Converts compatible map types (`map[string]int`, `hasMap` interfaces, or generic maps) to a concrete `map[string]int`.
+- `InterfaceToStringMap(i interface{})`: Converts map values to strings, yielding a clean `map[string]string`.
+- `InterfaceToStringSlice(i interface{})`: Converts slices of interfaces or strings into a pure `[]string`.
+
+All functions include **explicit error handling** via custom types (e.g., `NotAnInteger`, `NotAMapInt`) and use logging via Logrus for debugging. The package prioritizes **type safety**, **robustness**, and interoperability across Go types.