⬆️ 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/obiseq/worker.md

@@ -0,0 +1,18 @@
+# Semantic Description of `obiseq` Package Functionalities
+
+The `obiseq` package provides composable, higher-order worker functions for processing biological sequence data in Go. It defines three core functional types:
+
+- `SeqAnnotator`: In-place annotation of a single sequence (e.g., adding metadata).
+- `SeqWorker`: Processes one sequence and returns zero or more output sequences (1→N transformation).
+- `SeqSliceWorker`: Processes a slice of sequences and returns another slice (bulk pipeline stage).
+
+Key utilities include:
+
+- **`NilSeqWorker`**: Identity worker—returns the input sequence unchanged.
+- **`AnnotatorToSeqWorker`**: Converts an in-place annotator into a `SeqWorker`, preserving compatibility with pipeline interfaces.
+- **`SeqToSliceWorker`**: Lifts a `SeqWorker` to operate on slices, with configurable error handling (`breakOnError`). Supports dynamic slice growth and logging via `obilog`.
+- **`SeqToSliceFilterOnWorker`**: Filters sequences in a slice using a `SequencePredicate`, preserving order and avoiding unnecessary allocations.
+- **`SeqToSliceConditionalWorker`**: Applies a `SeqWorker` only to sequences satisfying a predicate; others pass through unchanged.
+- **`.ChainWorkers()`**: Method on `SeqWorker` to compose two workers sequentially (pipeline chaining), enabling modular, reusable workflows.
+
+All functions emphasize safety: errors are either propagated (`breakOnError = true`) or logged with warnings, ensuring robustness in large-scale sequence processing pipelines.