⬆️ 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/obiformats/universal_write.md

@@ -0,0 +1,29 @@
+# `obiformats` Package: Sequence Writing Utilities
+
+This Go package provides utilities for writing biological sequence data to files or standard output in FASTA/FASTQ formats.
+
+## Core Functionality
+
+- **`WriteSequence()`**:  
+  Main dispatcher that detects sequence quality data and writes either FASTQ (if qualities present) or FASTA.  
+  - Accepts an `IBioSequence` iterator, a writable stream (`io.WriteCloser`), and optional configuration.  
+  - Preserves iterator state via `PushBack()` to allow chaining.
+
+- **`WriteSequencesToStdout()`**:  
+  Convenience wrapper writing sequences to `stdout`. Automatically closes the output stream.
+
+- **`WriteSequencesToFile()`**:  
+  Writes sequences to a specified file. Supports:
+    - File creation/truncation or append mode (`OptionAppendFile()`).
+    - Paired-end output: writes mate pairs to a second file if `OptionSavePaired()` is enabled.
+
+## Design Highlights
+
+- **Format-Aware Dispatch**: Automatically selects FASTQ vs. FASTA based on presence of quality scores (`HasQualities()`).
+- **Iterator Preservation**: Ensures non-consumed sequences remain available after write operations.
+- **Error Handling & Logging**: Uses `logrus` for fatal errors during file I/O; returns structured error codes.
+- **Configurable Options**: Extensible via `WithOption` pattern (e.g., append mode, paired-end handling).
+
+## Integration
+
+Designed for use within the OBITools4 ecosystem—works with `obiiter.IBioSequence` iterators to support streaming, memory-efficient processing of large sequencing datasets.