[Feature]: Show installed Hermes skills in chat slash-command autocomplete

[GodsMoon]

Hermes Workspace chat currently shows built-in slash commands such as /new, /clear, /model, /skills, /mcp, etc., but installed Hermes skills do not appear in the chat slash-command typeahead.

Since Hermes skills are exposed as slash-invokable commands in Hermes itself, Workspace should surface enabled/installed skills in the chat composer autocomplete.

Typing / should show:

• built-in Workspace commands
• enabled installed Hermes skills

Selecting a skill should insert:

/<skill-name>

into the composer, allowing the user to continue typing the task.

I know the skill browser exists, but this is the fundamental way to invoke skills in Hermes CLI, Codex, Claude Code, Github Copilot, etc. It should be standard in Hermes Workspace too.

[outsourc-e]

Closing as resolved by merged cleanup batch #483, which is already on main. This issue was covered in the consolidation sweep and is now queue hygiene rather than unresolved engineering. If anyone can still reproduce the behavior on current main, reopen with fresh repro steps and we can treat it as a new regression.