feat(rocke): resolve rocKE targets through HIP

[tenpercent]

Summary

• add an optional HIP runtime API for resolving the current device architecture with structured errors
• resolve an omitted unified-attention target through HIP while keeping explicit targets authoritative
• leave HIP_VISIBLE_DEVICES interpretation to HIP and avoid process-wide device or architecture caching
• add host-only coverage through an injected HIP function table and leave Python follow-up TODOs

Test plan

• build rocke_core, rocke_hip_target_resolution, and rocke_tiled_attention_2d_reentrancy
• run focused CTest coverage for HIP target resolution and attention reentrancy
• build the rocke_engine pybind module
• verify attention byte identity with llvm20, llvm22, and llvm23
• run PR-range pre-commit hooks; all applicable hooks pass except the existing whole-file CMake lint baseline
• run a physical-GPU runtime query; this host has no ROCm-capable device, and the error path plus injected HIP behavior are covered by host tests

ISSUE ID : AICK-1849

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Check	Status	Details
📝 PR Description	✅ Pass	—
⛔ Forbidden Files	✅ Pass	—
🧪 Unit Test	✅ Pass	—
🔎 pre-commit	✅ Pass	—
🚫 Draft PR	🔜 To Be Enabled	—
🚩 Feature Flag	🔜 To Be Enabled	—
📊 Code Coverage	🔜 To Be Enabled	—
🤖 therock-pr-bot	✅ Pass	—

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[therock-pr-bot]

🎉 All checks passed! This PR is ready for review.