feat(text): prepare the Rust text stack for publishing

[thejustinwalsh]

Summary

This publishing-readiness slice sits directly above #47 and turns the Rust text stack into one coherent @pmndrs/text product surface.

• Moves the font-baker Rust/Wasm implementation, schemas, tests, and build tooling into @pmndrs/text; no separate font-baker package is published.
• Adds the package-owned text CLI with bake and glyphs commands, direct and project-discovery baking, Unicode-range selection, Bitmap/MSDF/Slug selection, command-specific help, JSON output, and byte-exact --check verification.
• Performs Unicode subsetting and font inspection in the package-owned Fontations/Skrifa baker Wasm. Product baking has no HarfBuzz executable or platform-binary dependency; HarfBuzz remains an internal test oracle only.
• Shares one prepare-once pipeline across the CLI, @pmndrs/text/bake, and the browser runtime Worker. One prepared source feeds shaping plus every selected raster baker and produces one validated canonical GLB.
• Lets one typed load request select multiple techniques from one GLB while fetching, validating, registering, and retaining the font artifact once.
• Caches only the final validated runtime-baked GLB. Cache identity includes source, face, normalized ranges, raster descriptors, and contract versions; persistent lifetime follows reusable Cache-Control/Expires metadata from the source response, while unavailable or non-cacheable storage remains a transparent miss.
• Keeps the R3F Vite example direct: one App, one switched world Text, explicit world/UI TextGroup layers, one multi-technique load per asset, and font-stack icon fallback.
• Reports independently attributable gzip rows for core JavaScript, shaper Wasm, Three adapter JavaScript, optional baker/validator payloads, and fixed Inter and Font Awesome assets. Three.js, React, and R3F remain external peers.
• Restores release gates for licenses, generated Wasm contracts, optimized package-owned Wasm artifacts, packed-package behavior, and retained CI evidence.

Package surfaces

• @pmndrs/text
• @pmndrs/text/bake
• @pmndrs/text/runtime-bake
• @pmndrs/text/three
• @pmndrs/text/r3f
• package executable: text

The root runtime graph has no static edge to the optional baker Wasm, its std-enabled dependencies, Ajv, or glTF Validator. Shared runtime Rust remains no_std; the optional baker alone owns its Fontations subsetting requirements.

Stack

main → #44 → #45 → #47 → #48

Validation

The stack includes focused coverage for:

• direct CLI baking, Unicode subsetting, glyph inspection, help/version behavior, and byte-exact checks;
• Node and browser Worker prepare-once, multi-raster composition, transfer, validation, and failure behavior;
• runtime cache identity, source-derived freshness, corruption, quota/storage failure, and memory-only fallbacks;
• typed multi-technique loading and R3F API inference;
• package exports, ESM-only and packed-package execution, license inclusion, and optimized Wasm ABI/export gates;
• R3F typecheck, lint, format, production build, and live GPU switching across Bitmap, MSDF, and Slug;
• fail-closed package-size projection and repository documentation validation.

GitHub Actions reports the final full-stack status for the published commit.

[github-actions]

size-limit report 📦

Path	Size
Core JS (gzip)	18.22 KB (+4.6% 🔺)
Shaper Wasm (gzip)	432.95 KB (+0.13% 🔺)
Three.js adapter JS (gzip)	56.77 KB (+3.25% 🔺)
Inter font · Bitmap (gzip)	545.22 KB (0%)
Inter font · MTSDF (gzip)	6.48 MB (0%)
Inter font · Slug (gzip)	603.99 KB (0%)
Font Awesome icons · Bitmap (gzip)	439.5 KB (0%)
Font Awesome icons · MTSDF (gzip)	6.89 MB (0%)
Font Awesome icons · Slug (gzip)	642.59 KB (0%)
Font validator JS (gzip)	134.18 KB (-0.17% 🔽)
Runtime bake host JS (gzip)	5.38 KB (+44.14% 🔺)
Runtime bake Worker JS (gzip)	142.39 KB (+4799.37% 🔺)
Font baker JS (gzip)	2.41 KB (+14.83% 🔺)
Font baker Wasm (gzip)	382.14 KB (+138.13% 🔺)
Bitmap baker JS (gzip)	4.66 KB (0%)
Bitmap baker Wasm (gzip)	229.22 KB (0%)
MTSDF baker JS (gzip)	5.39 KB (0%)
MTSDF baker Wasm (gzip)	209.99 KB (0%)
Slug baker JS (gzip)	4.01 KB (0%)
Slug baker Wasm (gzip)	182.3 KB (0%)