feat!: modularize stemmer models and release infrastructure

Move bundled stemmer dictionaries from the core artifact into independently
versioned model modules. Add model discovery and explicit model-loading APIs,
a standard model aggregate, a model BOM, and dedicated model and catalog
release workflows.

Add full PoliMorf integration, model provenance and licensing validation,
streaming model-input verification, strict dependency verification, consumer
resolution tests, Configuration Cache compatibility, and expanded JMH,
quality, documentation, and release checks.

Upgrade the CycloneDX and JMH Gradle plugins and remove Gradle 10 and Java
compiler deprecations.

BREAKING CHANGE: The core Radixor artifact no longer contains bundled stemmer
dictionaries. Applications must add the required model artifacts, the standard
model aggregate, or model dependencies managed through the Radixor model BOM.

models/yi-default/build.gradle

@@ -0,0 +1,23 @@
+plugins {
+    id 'org.egothor.radixor.model'
+}
+
+radixorModel {
+    modelId = 'yi-default'
+    language = 'YI'
+    displayName = 'Yiddish default model'
+    defaultModel = true
+    sourceName = 'UniMorph'
+    sourceVersion = 'not-recorded-in-legacy-import'
+    sourceRevision = 'not-recorded-in-legacy-import'
+    sourceProject = 'UniMorph'
+    sourceRepository = 'https://github.com/unimorph/yid'
+    sourceDataset = 'UniMorph Yiddish morphological dataset (`yid`)'
+    sourceRevisionStatus = 'not-recorded-in-legacy-import'
+    sourceLicense = 'CC-BY-SA-3.0'
+    sourceLicenseUri = 'https://creativecommons.org/licenses/by-sa/3.0/'
+    sourceAttribution = 'UniMorph'
+    sourceVerificationDate = '2026-07-22'
+    transformationsSummary = 'Cleaning, normalization, grouping inflected forms by lemma, deduplication, filtering invalid rows, reformatting into Radixor dictionary groups, GZip packaging, and generation of runtime descriptor and checksum metadata'
+    noticeFileName = 'NOTICE-model-data.txt'
+}