Profile-local skills are unavailable in Dashboard/TUI/Desktop GUI because the
_SlashWorker subprocess is spawned with os.environ.copy() but does NOT receive
the profile-specific HERMES_HOME from the parent session. This causes the
subprocess to search ~/.hermes instead of the active profile's skills directory.
1. Modify _SlashWorker.__init__ to accept optional profile_home parameter
2. When profile_home is provided, set env['HERMES_HOME'] = profile_home before
spawning the subprocess
3. Update all 4 call sites to pass profile_home=session.get('profile_home')
4. Add regression tests for profile-home propagation
- Full TUI gateway test suite: 107 tests pass
- New tests cover:
- profile_home parameter acceptance
- backward compatibility (None, omitted)
- argv correctness
Fixes#40677
4a99571d54