Build js/wasm with emscripten

[cpunion]

TODO: Need parameters rewriting to compatible C ABI

• Build js/wasm with emscripten
  • Build wasm with wasip1: GOOS=wasip1 GOARCH=wasm llgo build -o hello.wasm .
  • Build wasm with html/js: GOOS=js GOARCH=wasm llgo build -o hello.html .
  • Build wasm: GOOS=js GOARCH=wasm llgo build -o hello.wasm .

[codecov]

Codecov Report

Attention: Patch coverage is 44.44444% with 65 lines in your changes missing coverage. Please review.

Project coverage is 86.64%. Comparing base (9203c36) to head (fd1def7).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/crosscompile/cosscompile.go	44.44%	63 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1123      +/-   ##
==========================================
- Coverage   87.35%   86.64%   -0.72%     
==========================================
  Files          29       29              
  Lines        7228     7343     +115     
==========================================
+ Hits         6314     6362      +48     
- Misses        849      914      +65     
- Partials       65       67       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.