widgets: native pages from .t27 replace tool.js for jtag-verdict and race-the-bee (t27 epic 10937) #1707

Move the first two WIDGETS tools from hand-written tool.js to pages written in .t27 and built to wasm. The epic is Trinity-S-AI-DNA/t27#10937: 28 tools carry 22833 hand-written lines (JavaScript, CSS, Node data builders, Python card renderers); the logic and the page of each are being ported to .t27, proven equal to the hand-written version by a differential, and driven by one shared host.

This change, for jtag-verdict and race-the-bee:

• public/widgets/host.js (32 lines): the one host every native widget shares; it forwards events and data to widget.wasm and sets the HTML the wasm writes.
• widget.wasm per tool, built from the native spec (the tool's words plus its page, t27c gen and zig, wasm32-freestanding), 9269 and 13014 bytes.
• scripts/widget-pages-from-spec.mjs: a folder with widget.wasm and no tool.js is a native tool; its page loads ../host.js; every other byte of the generated page is unchanged.
• the vendored public/t27/t27_compiler.wasm is rebuilt from the t27 repo, because the old build rejects module-level var in a spec.
• tool.js of both tools is deleted (171 and 105 lines).

Boundary

• apps/website/scripts/widget-pages-from-spec.mjs
• apps/website/scripts/widget-pages-from-spec.test.mjs
• apps/website/public/widgets/host.js
• apps/website/public/widgets/jtag-verdict/widget.wasm
• apps/website/public/widgets/race-the-bee/widget.wasm
• apps/website/specs/widgets/jtag-verdict.t27
• apps/website/specs/widgets/race-the-bee.t27
• apps/website/public/t27/t27_compiler.wasm

User Scenarios

• Given a native tool folder, when the page generator runs, then its page differs from the committed one only in the script tag and the content stamps.
• Given the migrated pages, when the same actions drive them and the original pages, then their DOM is identical after each.

Requirements

• FR-001: A native tool MUST have widget.wasm and no tool.js, and the generator MUST refuse a tool with neither.
• FR-002: The shared host MUST load nothing from another host and keep no browser state.

Success Criteria

• node scripts/widget-pages-from-spec.mjs --check exits 0 with 82 pages.
• Net hand-written JavaScript in the change is -207 lines.