b729036778
core.wasm and wasm_exec.js are no longer tracked (untracked + gitignored). A reusable composite action .gitea/actions/build-wasm installs TinyGo (actions/cache'd) and runs `make -C ui wasm`; it runs in all three frontend-building workflows — ui-test (before Playwright; Vitest uses the fake Core and needs no build), dev-deploy, and prod-build. ui-test gains a Go setup (TinyGo shells out to Go); the deploy workflows already had one. Docs: ui/docs/wasm-toolchain.md, ui/README.md. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>