[siktec-lab]

Summary

• Runtime Web APIs (slice-engine): Added WHATWG non-special/opaque-path URL parsing (sveltekit-internal://,
  ew URL('a:')), default Request.prototype.signal, async ReadableStream start() awaiting in Response, post-init Content-Type header preservation, and multi-cookie Set-Cookie emission.
• ESM Live Bindings (slice-cas): Added live getter exports (Object.defineProperty(exports, ...)) and live import property rewrites (__live_N.) for reassigned ES module exports (required by @sveltejs/kit@3.1.1 + Vite 8 Rolldown chunks).
• Template & Benchmark Suite (slice-cli & ests/frameworks/04-sveltekit-edge-ssr): Added slice init --template=sveltekit (@sveltejs/kit@3.1.1 + svelte@5.57.3 + devalue@6.0.3 + �ite@8.3.7) and Framework 4 (FW-04) to the 33-workload Docker benchmark harness and docs (36.16 ms cold .cas / 17.02 ms warm / 20.50 MB RSS — 1.29x faster cold than Bun and 3.31x faster than Node.js).