Ontology metadata: real creators/contributors, honest description, DC cleanup (+ artifact sync) (#495)

* Rebuild release artifacts: 327 IAO:0100001 redirects + yellow-pigment synonym fix

The release artifacts (metpo.owl, metpo-full.owl, metpo-base.* + obo/json)
were not rebuilt when the term-replaced-by work and the MetaTraits synonym
fix landed. The component (metpo_sheet.owl) and templates carried the
changes, but the published artifacts did not, so consumers fetching
metpo.owl saw neither the 327 IAO:0100001 redirects nor the corrected
'cell color: yellow pigment' synonym.

This rebuild brings the release files in sync with the source. No source
changes; pure regeneration from the current templates and component.

Verified: make test passes (0 ROBOT errors, 5/5 SPARQL, OWL 2 DL valid).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* Fix ontology metadata: real creators/contributors, honest description, DC cleanup

Credit (verified ORCIDs/emails, roles per maintainer decision):
- creator/lead: Mark Andrew Miller (0000-0001-9076-6066)
- contributors: Marcin P. Joachimiak (0000-0001-8175-045X),
  Christopher J. Mungall (0000-0002-6601-2165)

Applied per field, each datum only where the field expects it:
- metpo-edit.owl header: dcterms:creator/contributor now carry ORCID IRIs
  (replacing the placeholder string "METPO Development Team"); names are not
  crammed in here.
- metpo-odk.yaml: creators/contributors hold names only; contact holds email.
- pyproject.toml: authors + maintainers (name + email keys).
- CITATION.cff (new): given/family names, ORCID, email, affiliation each in
  their own field.

Honest description (all three places): drops the unsupported "follows OBO
Foundry conventions" and "reuses terms from ... CHEBI, NCBITaxon" claims
(CHEBI=1 ref, NCBITaxon=0 in the actual content). States what METPO actually
does: harmonizes trait-database terminology, uses OBO-style annotation
patterns, and cites OMP/MicrO/GO/ECOCORE/PATO as definition sources (the
ontologies actually referenced).

DC namespace cleanup:
- Drop the declared-but-unused dce: prefix (deprecated DC Elements 1.1
  namespace; the repo's dc-properties-violation QC check already bans its use).
  All DC properties remain correctly bound to dcterms: (http://purl.org/dc/terms/).
- Drop dcterms:modified (hand-maintained, contradicted the automated
  versionIRI/versionInfo). dcterms:issued retained as first-release date.

Artifacts rebuilt. make test passes: 0 ROBOT errors, 5/5 SPARQL, OWL 2 DL valid.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* Remove dcterms:issued placeholder date (2024-01-01)

The 2024-01-01 value was a placeholder, not METPO's real first-release date.
Dropped the annotation and its property declaration; artifacts rebuilt.
Like dcterms:modified, this leaves versioning to the automated
versionIRI/versionInfo. make test passes (0 ROBOT errors, OWL 2 DL valid).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: turbomam

CITATION.cff

@@ -0,0 +1,29 @@
+cff-version: 1.2.0
+message: "If you use METPO, please cite it using these metadata."
+title: "METPO: Microbial Ecophysiological Trait and Phenotype Ontology"
+abstract: >-
+  METPO provides terms for microbial ecophysiological traits and phenotypes:
+  growth preferences (temperature, pH, salinity, oxygen), metabolism, and cell
+  morphology of bacteria and archaea. Its primary purpose is to harmonize
+  terminology across major microbial trait databases (BacDive, BactoTraits,
+  Madin bacteria_archaea_traits, MetaTraits) for use in NMDC and KG-Microbe.
+type: dataset
+authors:
+  - given-names: "Mark Andrew"
+    family-names: "Miller"
+    orcid: "https://orcid.org/0000-0001-9076-6066"
+    email: "MAM@lbl.gov"
+    affiliation: "Lawrence Berkeley National Laboratory"
+  - given-names: "Marcin P."
+    family-names: "Joachimiak"
+    orcid: "https://orcid.org/0000-0001-8175-045X"
+    email: "mjoachimiak@lbl.gov"
+    affiliation: "Lawrence Berkeley National Laboratory"
+  - given-names: "Christopher J."
+    family-names: "Mungall"
+    orcid: "https://orcid.org/0000-0002-6601-2165"
+    email: "cjmungall@lbl.gov"
+    affiliation: "Lawrence Berkeley National Laboratory"
+license: "CC-BY-4.0"
+repository-code: "https://github.com/berkeleybop/metpo"
+url: "https://w3id.org/metpo"