value() returns u32 but wraps bar() which returns c_int (i32). The as u32 cast silently converts negative return values — a -1 error code becomes 4294967295. Since this is a scaffold template, downstream contracts inherit the bug.

• Changed value() return type from u32 to i32 to match the FFI signature
• Removed the lossy as u32 cast

// Before
pub fn value() -> u32 {
    (unsafe { bar() }) as u32
}

// After
pub fn value() -> i32 {
    unsafe { bar() }
}

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