Data quality and release clarity update
PepDiana refined scientific data validation, public terminology, quality guidance, and release-level provenance for the first public version.
- Corrected qualitative and not-detected observations that had been assigned structured numeric values, and clarified missing-value reasons.
- Separated confirmed modification-specific peptide identities that shared the same unmodified backbone sequence.
- Introduced public `PEPDIA-INT-xxxxxx` identifiers while retaining historical identifiers as compatible aliases.
- Added complete value-and-unit display, quality-score explanations, source-sequence warnings, and persistent PostgreSQL-backed visitor numbering.
- Updated the public release label to `PepDiana-V1-20260620` and regenerated versioned release assets and checksums.
