⬆️ 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/taxonomy_predicate.md

@@ -0,0 +1,20 @@
+# Semantic Description of `obiseq` Package Functionalities
+
+This Go package provides **sequence filtering predicates** for biological sequences, integrated with taxonomic validation and hierarchy analysis.
+
+- `IsAValidTaxon(taxonomy, ...bool) SequencePredicate`:  
+  Returns a predicate that checks whether a sequence has an associated valid taxon in the given taxonomy.  
+  Optionally supports *auto-correction* of outdated/incorrect `taxid` values to match the current taxonomy node.
+
+- `IsSubCladeOf(taxonomy, parent) SequencePredicate`:  
+  Filters sequences whose taxonomic assignment is a descendant (sub-clade) of the specified `parent` taxon.
+
+- `IsSubCladeOfSlot(taxonomy, key) SequencePredicate`:  
+  Enables filtering based on a *sequence attribute* (e.g., `"taxon"` or `"classification"`) that holds a taxonomic label.  
+  Validates the label against the taxonomy, then checks if the sequence’s assigned taxon falls under it.
+
+- `HasRequiredRank(taxonomy, rank) SequencePredicate`:  
+  Ensures the sequence’s taxon is assigned at or below a specified rank (e.g., `"species"`, `"genus"`).  
+  Validates the requested `rank` against taxonomy’s rank list; exits on invalid input.
+
+All predicates follow a functional, composable design pattern (`SequencePredicate = func(*BioSequence) bool`), enabling flexible pipeline construction (e.g., filtering, classification validation).