Publish browser-ready WASM packages and SDK entrypoints

[i001962]

Note

This patch was generated with AI assistance and is offered as a proposed approach, not an official Quilibrium SDK fix. It was created to unblock our development while we wait for the Quilibrium team to publish its canonical patch.

Summary

• turn the repository root into a private monorepo package and publish the actual vanilla SDK as @quilibrium/qkms-sdk@2.1.1
• add publishable scoped packages for DKLs23, channel, BLS48-581, Bulletproofs, and MPC WASM artifacts
• add conditional browser/Node exports with browser-safe ESM loaders and no filesystem shims in browser bundles
• replace local ceremonyclient file dependencies with workspace/package dependencies and a reproducible upstream Go module reference
• remove Vite/Next workarounds and add a clean packed-consumer smoke test that installs all nine tarballs

Testing

• pnpm test (30 tests)
• pnpm test:package (packs and installs all nine packages, initializes Node runtimes, and builds a clean Vite consumer with all five WASM assets)
• ./test.sh all (SigV4, FROST, BLS48, BLS12, and RSA protocol smoke tests; 6/6)
• ./test.sh wasm (4/4)
• pnpm --dir examples/qkms-next-starter build
• pnpm --dir examples/qkms-react-starter build
• pnpm --dir examples/qkms-vanilla-starter build

Fixes #1