fix(ci): install iOS targets on self-hosted runner

[v1truv1us]

Problem

Rust Test Suite (beta and stable) are failing with:

❌ iOS target not installed

Root Cause

The self-hosted runner doesn't have iOS targets installed for cross-compilation.

Solution

1. SSH into self-hosted runner
2. Run: rustup target add aarch64-apple-ios
3. Verify with: rustup target list | grep ios
4. Re-run tests

Priority

MEDIUM - Pre-existing infrastructure issue (not blocking PR #36)

Related

• PR fix(ci): resolve integration test workflow failures #36: fix(ci): resolve integration test workflow failures (MERGED)