[WIP] [GH-123] Fix gh-aw v0.61.0 fails when safe-outputs staged mode is enabled

[Copilot]

• Identify root cause: generate_aw_info step never calls setupGlobals, so global.core is not set; staged_preview.cjs uses core as a global → ReferenceError: core is not defined
• Add require('./shim.cjs') to setup_globals.cjs module level (as suggested by @pelikhan)
• Add setupGlobals call before generate_aw_info require in compiler_yaml.go
• Update aw_info_tmp_test.go to verify setupGlobals is present in the generated step
• Build, recompile lock files, run tests

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