Add game localization and desktop builds

[is2b007]

Summary

• add a shared 47-language BCP 47 catalog and per-project localization settings across desktop, Android, CLI, and MCP
• add common game-development exports for Unity, Godot, Unreal, Yarn, GNU gettext, XLIFF, JSON, and CSV
• add repeatable macOS Apple-silicon and Windows x64 packaging, including target-native SQLite binaries and Windows icon support
• keep GitHub, remote-agent access, and every other network boundary explicit and disabled by default

Verification

• CI=true pnpm typecheck
• vitest run --no-file-parallelism --maxWorkers=1 — 30 files / 82 tests passed
• CI=true pnpm test:offline
• macOS DMG and ZIP produced; extracted app passes strict deep code-signature verification and launch screenshot smoke
• Windows x64 ZIP produced; archive integrity passes and both Reed.exe and better_sqlite3.node are x86-64 PE binaries

Artifacts

• Reed-0.1.9-arm64.dmg
• Reed-darwin-arm64-0.1.9.zip
• Reed-win32-x64-0.1.9.zip