Fix failing e2e test: repomix_config not registered in create_all_assessors

[jwm4]

Bug

tests/e2e/test_critical_paths_simplified.py::TestCriticalConfigHandling::test_valid_config_application fails on main with:

Error: Invalid attribute ID(s) in config file: repomix_config

The test excludes repomix_config via a config file to verify that exclusion works. The assess command rejects it because repomix_config is not in the set of known attribute IDs.

Root cause

RepomixConfigAssessor is defined in src/agentready/assessors/repomix.py with attribute_id = "repomix_config" but is never registered in create_all_assessors() in src/agentready/assessors/__init__.py. The attribute validator only knows about registered assessors, so it treats repomix_config as an unknown ID.

Fix

Either register RepomixConfigAssessor in create_all_assessors() (the right fix if the assessor is intentionally part of the product), or update the test to exclude a valid attribute ID (if the assessor is intentionally unregistered and the test just needs a valid example).

Repro

pytest tests/e2e/test_critical_paths_simplified.py::TestCriticalConfigHandling::test_valid_config_application -v

Fails on main as of 4f99a69.

---

Opened by Claude Code under the supervision of Bill Murdock.