[SMAP-git]

Summary

• Replace the separate gear/editor with one Contribute vocabulary / Local word list window containing contribution, custom-word and ignore tabs.
• Keep five-column contribution CSVs as review-only suggestions: no automatic uploads or engine changes.
• Add dedicated UTF-8 CSV import/export for active custom replacements (pt-BR;pt-PT) and exclusions (pt-BR), with complete validation before merging, reversible spreadsheet formula protection and conflict handling.
• Keep existing XML storage and conversion semantics. Saved entries persist across all subsequent files and Batch convert jobs; unsaved drafts are protected and corrupt existing XML cannot be overwritten.
• Add the complete natural European Portuguese README, links between both guides and packaging of both documents.
• Retain official plugin.json version 1.4.0; release numbering remains with the maintainer. Previously merged fixes from Fix figurative requests for spoken information in Portuguese #353 are not resubmitted.

Validation

• Full suite against current upstream shared code with native Avalonia UI enabled: 2,592 passed, 7 opt-in model tests skipped.
• Native tests cover all tabs, contribution isolation, CSV merging, malformed import preservation, editing/removal, concurrent drafts, persistent XML, preview refresh and batch configuration.
• Self-contained Linux publish succeeded; standalone package smoke preserves exact vocabulary output and cue timestamps.
• No changes to Plugin-Shared, unrelated plugins, workflows or catalogue entries.