Add address_space_id parameter to futex wait/wake for multi-process support

[wdcui]

Summary

• Add address_space_id: u64 discriminator to FutexEntry, bucket hashing, wait(), and wake() to prevent false aliasing between processes with overlapping virtual address ranges.
• Userland callers (single address space) pass 0.
• Update all shim callers and futex tests.

Split from #743.

[github-actions]

🤖 SemverChecks 🤖 ⚠️ Potential breaking API changes detected ⚠️

Click for details

--- failure method_parameter_count_changed: pub method parameter count changed ---

Description:
A publicly-visible method now takes a different number of parameters, not counting the receiver (self) parameter.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#fn-change-arity
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.47.0/src/lints/method_parameter_count_changed.ron

Failed in:
  litebox::sync::futex::FutexManager::wait takes 4 parameters in /home/runner/work/litebox/litebox/target/semver-checks/git-main/3f147ef888356c93d58d41289364c3f400dffaec/litebox/src/sync/futex.rs:83, but now takes 5 parameters in /home/runner/work/litebox/litebox/litebox/src/sync/futex.rs:98
  litebox::sync::futex::FutexManager::wake takes 3 parameters in /home/runner/work/litebox/litebox/target/semver-checks/git-main/3f147ef888356c93d58d41289364c3f400dffaec/litebox/src/sync/futex.rs:135, but now takes 4 parameters in /home/runner/work/litebox/litebox/litebox/src/sync/futex.rs:155