⬆️ 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/fastqseq_read.md

@@ -0,0 +1,41 @@
+# FASTQ Parsing Module (`obiformats`)
+
+This Go package provides robust, streaming-capable parsing of FASTQ files — a standard format for storing nucleotide sequences along with quality scores.
+
+## Core Functionalities
+
+- **`EndOfLastFastqEntry(buffer []byte) int`**  
+  Locates the start position (`@`) of the last complete FASTQ entry in a byte buffer using state-machine scanning from end to beginning. Returns `-1` if no valid entry found.
+
+- **`FastqChunkParser(...)`**  
+  Returns a parser function for processing FASTQ data from an `io.Reader`. Handles:
+  - Header parsing (`@id [definition]`)
+  - Sequence normalization (uppercase → lowercase, `U→T` conversion if enabled)
+  - Quality score shifting (`quality_shift`)
+  - Strict validation (e.g., `+` line, matching sequence/length)
+
+- **`FastqChunkParserRope(...)`**  
+  Optimized parser for rope-based input (`PieceOfChunk`), avoiding unnecessary memory copies. Uses direct line-by-line scanning.
+
+- **Batched File Parsing (`_ParseFastqFile`, `ReadFastq`, etc.)**  
+  Enables concurrent, chunked parsing of large files:
+  - Splits input into chunks using `ReadFileChunk`
+  - Uses configurable parallel workers (`nworker`)
+  - Pushes parsed batches to an iterator interface
+
+- **Convenience I/O Wrappers**
+  - `ReadFastqFromFile(filename, ...)`: Parses a file by name.
+  - `ReadFastqFromStdin(...)`: Reads FASTQ from standard input.
+
+## Key Options & Features
+
+- **Quality handling**: Optional quality extraction (`with_quality`), configurable offset (`quality_shift`)
+- **Uracil-to-Thymine conversion**: `UtoT` flag for RNA→DNA normalization
+- **Header annotation parsing**: Optional post-parsing header interpretation via `ParseFastSeqHeader`
+- **Batch sorting & full-file mode**: Supports both streaming and complete-file aggregation
+
+## Design Highlights
+
+- **Memory-efficient chunking** with overlap-aware boundary detection (`EndOfLastFastqEntry`)
+- **Strict error reporting**: Fails fast on malformed FASTQ (e.g., invalid chars, length mismatch)
+- **Integration with `obiseq`, `obiiter`**: Returns typed biological sequence slices and iterator streams compatible with the broader OBITools4 ecosystem.