fix: stage rust binaries in .claude/bin

[rysweet]

Summary

• stage Rust amplihack and amplihack-hooks binaries into .claude/bin during wheel builds when available
• update staged-hook discovery to prefer ~/.amplihack/.claude/bin/amplihack-hooks while preserving legacy search paths
• add regression coverage for .claude/bin staging, wheel contents, and hook binary search priority

Validation

• /home/azureuser/src/amploxy/.venv/bin/pytest tests/test_wheel_packaging.py tests/test_rust_hook_engine.py tests/integration/test_cli_unified_staging.py -q

Result: 51 passed

[github-actions]

🤖 Auto-fixed version bump

The version in pyproject.toml has been automatically bumped to the next patch version.

If you need a minor or major version bump instead, please update pyproject.toml manually and push the change.

[github-actions]

Repo Guardian - Passed

All 8 changed files are durable, reusable content that belongs in the repository:

File	Assessment
.claude/bin/.gitkeep	Standard git placeholder for empty directory
build_hooks.py	Durable build hook — parameterized Rust binary staging logic
pyproject.toml	Version bump (0.6.20 → 0.6.21)
src/amplihack/__init__.py	Source code — adds bin to ESSENTIAL_DIRS
src/amplihack/settings.py	Source code — refactored binary search path candidates
tests/integration/test_cli_unified_staging.py	Integration test for .claude/bin staging
tests/test_rust_hook_engine.py	Unit tests for Rust hook binary lookup
tests/test_wheel_packaging.py	Wheel packaging tests for staged Rust binaries

No ephemeral content, temporary scripts, or point-in-time documents detected.

Generated by Repo Guardian for issue #3027 · ◷