Handle detached generic static initializers

[Frotty]

Summary

• preserve detached generic-static initializer entries as metadata during Lua specialization
• avoid attempting tree replacement/removal for initializer nodes with no parent
• retain ordered insertion for initializers that are attached to executable ImStmts
• add an IM-level regression covering two concrete generic-static specializations with a detached default initializer

Verification

• ./gradlew test --tests de.peeeq.wurstscript.translation.imtranslation.GenericTypesTests --tests tests.wurstscript.tests.LuaBackendAuditTests — passed
• grill build in zombie-defense with the locally installed patched compiler — passed and produced Zombie_Defense_0.26i.w3x

Acceptance criteria

• detached initializer metadata never becomes a null-parent tree insertion/removal
• attached initializer order remains unchanged
• concrete generic-static storage remains independent
• the reported project builds without the post-typecheck NPE

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-08-29T16:56:33.722057Z	073f6ca	PR opened

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