⬆️ 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/obilua/obiseq.md

@@ -0,0 +1,34 @@
+# `obilua` Package: Biosequence Lua Bindings
+
+The `obilua` Go package provides **Lua bindings** for biological sequence objects (`obiseq.BioSequence`) used in the OBITools4 ecosystem. It enables scripting and automation of sequence analysis directly from Lua.
+
+## Core Functionality
+
+- **Type Registration**: Registers a new userdata type `BioSequence` in the Lua state, exposing methods and constructors.
+- **Constructor**:  
+  ```lua
+  BioSequence.new(id, sequence[, definition]) →BioSequence```
+- **Accessors & Mutators**:
+  - `id()`, `sequence()`, `definition()` – get/set identifiers and sequence data.
+  - `qualities([table])` – handle PHRED-quality scores (as Lua table or string).
+  - `count()`, `taxid()` – numeric abundance and taxonomic ID.
+- **Taxonomy Integration**:
+  - `taxon([Taxon])` – get/set taxonomic assignment via integrated taxonomy engine.
+- **Attributes**:
+  - `attribute(name[, value])` – arbitrary metadata storage (supports tables, strings, numbers).
+- **Sequence Operations**:
+  - `len()` – length of the sequence.
+  - `has_sequence()`, `has_qualities()` – boolean checks for presence of data.
+- **Computation & Transformation**:
+  - `subsequence(start, end)` – extract a region.
+  - `reverse_complement()` → BioSequence.
+  - `md5()`, `md5_string()` – compute sequence checksums (raw bytes or hex string).
+- **Serialization**:
+  - `fasta([format])`, `fastq([format])` – output in FASTA/FASTQ, supporting `"json"` or `"obi"` header formats.
+  - `string([format])` – smart formatting: FASTQ if qualities present, else FASTA.
+
+## Implementation Notes
+
+- Uses `gopher-lua` for interpreter integration.
+- UserData wrapping ensures type safety and GC management of Go-backed objects.
+- Error handling via Lua `ArgError` or `RaiseError`.