Move declare(strict_types=1) after file-level docblock in all 12 class
files to satisfy WordPress Coding Standards docblock placement rule.
Fix multi-line function call formatting in class-psa-admin.php. Align
array double arrows and equals signs. Fix escaped backticks in
AIGeneratorTest heredoc that broke markdown fence stripping tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds [peptide_directory] shortcode with card grid, category taxonomy (8 terms),
search, pagination, detail modal, and /v1/compounds REST endpoint. Includes 9
new meta fields (half-life, stability, solubility, etc.), admin data tools for
migration/re-enrichment, integration hooks for cross-plugin extensibility,
dark mode support, and full uninstall cleanup. Refactors AI generator into
PSA_OpenRouter + PSA_KB_Builder classes. Adds PHPUnit tests for PostType and
Directory classes. Fixes QA findings: dead JS selector, renderError loading
state, numeric meta validation, prepared SQL in uninstall.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
