fix(go): avoid CI source path in release builds

[akonwi]

Summary

• write a portable embedded Ard support module for release binaries instead of replacing github.com/akonwi/ard with the CI checkout path
• keep the existing source checkout replace for dev builds
• add tests for release/dev generated go.mod behavior

Validation

• cd compiler && go test ./go
• cd compiler && go test . -run TestRunServerExampleRoutes
• cd compiler && go test ./...
• built a local release-style binary with version v0.19.1 and verified /tmp/ard-hotfix run main.ard in Ranger compiles past the module error (now reaches app DATABASE_URL panic)

[vercel]

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Project	Deployment	Actions	Updated (UTC)
ard-lang-dev	Ready	Preview, Comment	May 22, 2026 7:03pm