fix(skills): align inspect with runtime skill commands

[batufirat-hub]

Summary

• Prefer installed runtime slash-command skills for bare hermes skills inspect <name> lookups.
• Keep explicit hub identifiers (owner/repo/...) on the hub preview path.
• Surface disabled local skills instead of silently falling back to hub preview.
• Warn before hub fallback when runtime skill lookup fails.
• Add filesystem-backed regression coverage for runtime parity, disabled skills, duplicate names, case variants, parent-dir false matches, and lookup-error fallback.

Test Plan

• python3 -m py_compile hermes_cli/skills_hub.py tests/hermes_cli/test_skills_hub.py
• uv run --with pytest --with pytest-xdist --with pyyaml python -m pytest tests/hermes_cli/test_skills_hub.py -q -o 'addopts=' — 36 passed
• hermes --profile coding skills inspect review — installed local skill, enabled
• hermes --profile coding skills inspect skills-sh/mattpocock/skills/review — explicit hub preview still works
• Runtime /review command-map smoke — registered, resolves, invocation builds

[teknium1]

Thanks for the focused runtime-parity fix. Current main still sends bare skills inspect identifiers through hub-only resolution (hermes_cli/skills_hub.py:795-800), while slash commands enumerate installed and external skills with normalized command keys and recorded skill_md_path values (agent/skill_commands.py:320-382). The PR addresses that live mismatch while retaining the existing slash-containing identifier path for hub previews.

Automated hermes-sweeper review.