Adds cmd/i18n-validate that scans Go source files for i18n key usage
and validates them against locale JSON files and registered intents.
Features:
- Scans T(), C(), I(), and qualified i18n.* calls
- Expands ./... pattern to find all Go packages
- Validates message keys against locale JSON files
- Validates intent keys against registered core.* intents
- Reports missing keys with file:line locations
- Skips constant references (type-safe usage)
Usage:
go run ./cmd/i18n-validate ./...
task i18n:validate
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
