Move AppCode out of context when promoting errors

[RAprogramm]

Summary

• move Context::into_error to transfer its AppCode into the constructed AppError while keeping field redaction helpers working with moved metadata
• add a regression test that proves dynamically created codes are moved (pointer identity) and refresh trybuild snapshots for the current compiler diagnostics
• bump the crate to 0.24.1 with changelog and README updates reflecting the fix

Testing

• cargo +nightly fmt --
• cargo build --all-targets
• cargo test --all
• cargo clippy -- -D warnings
• cargo doc --no-deps
• cargo audit
• cargo deny check

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https://chatgpt.com/codex/tasks/task_e_68d7196177a0832b8863c84291a3c91d