⬆️ 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/data.md

@@ -0,0 +1,31 @@
+# `obistats` Package Overview
+
+The `obistats` package provides data structures and utilities for analyzing benchmark results in Go. It enables aggregation, statistical summarization, and comparison of performance metrics across multiple configurations.
+
+## Core Types
+
+- **`Collection`**: Holds benchmark results grouped by configuration, group label (e.g., parameter combinations), and metric unit. It tracks:
+  - Ordered lists of `Configs`, `Groups`, and `Units`.
+  - A map from group names to ordered lists of benchmark functions (`Benchmarks`).
+  - `Metrics`, keyed by `(Config, Group, Benchmark, Unit)`.
+  - Optional parameters for significance testing (`DeltaTest`, `Alpha`), geometric mean inclusion, and result ordering/splitting.
+
+- **`Key`**: Uniquely identifies a metric for one benchmark run, combining configuration source (`Config`), group label (`Group`), benchmark name (sans `"Benchmark"` prefix), and unit.
+
+- **`Metrics`**: Stores raw (`Values`) and cleaned (`RValues`, with outliers removed via IQR) measurements, plus derived statistics: `Min`, `Mean`, and `Max`.
+
+## Key Functionality
+
+- **Statistical summarization**:  
+  - Outlier removal using Tukey’s fences (Q1 ± 1.5×IQR, Q3 + 1.5×IQR).  
+  - Computation of min/mean/max over cleaned data.
+
+- **Formatting helpers**:  
+  - `FormatMean()`: Returns formatted mean (e.g., scaled or raw).  
+  - `FormatDiff()`: Computes and formats symmetric deviation as ±% (based on min/max vs. mean).  
+  - `Format()`: Combines both into `"mean ±diff"` style.
+
+- **Dynamic collection building**:  
+  - `addMetrics()` creates or retrieves metrics for a given key, while maintaining ordered lists of unique configs/groups/units and benchmarks-per-group.
+
+> ⚠️ *Note*: The file includes commented-out methods (`AddFile`, `AddData`, etc.) referencing an external `benchfmt` package—these are placeholders and not part of the active API in this excerpt.