fix(ci): repair release packaging jobs

Summary

• Restores the Release workflow after the latest main push showed ARM Linux, Windows, and XCFramework jobs failing for separate release packaging reasons.
• Installs build-essential on Linux release runners so generated Cargo dependency build scripts have the native linker tools they need, while keeping the existing libcap-ng-dev setup.
• Normalizes Cargo metadata paths in the Rust prelude so Windows registry paths resolve custom build targets to build.rs instead of falling back to src/lib.rs; the new regression test covers the anyhow metadata shape that failed in CI.
• Keeps panic=abort for standard release targets but omits it for iOS staticlibs, because the XCFramework build pulls in objc2 and that crate requires unwind panics on the iOS targets.

Testing

• mise exec -- cargo test -p once-frontend prelude_cargo_metadata_targets_normalize_windows_build_script_paths
• mise exec -- cargo test -p once-frontend prelude_cargo_metadata_targets
• mise exec -- cargo test -p once-frontend --test prelude
• mise exec -- cargo fmt --all -- --check
• git diff --check
• Manual generated-manifest checks for aarch64-apple-ios and x86_64-pc-windows-msvc release flags

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