revert: roll back /goal checklist + /subgoal feature stack (#23813)

* Revert "fix(goals): force judge to use tool calls instead of JSON-text replies (#23547)"

This reverts commit a63a2b7c78.

* Revert "fix(goals): forward standing /goal state on auto-compression session rotation (#23530)"

This reverts commit 4a080b1d5a.

* Revert "feat(goals): /goal checklist + /subgoal user controls (#23456)"

This reverts commit 404640a2b7.

hermes_cli/commands.py

@@ -104,8 +104,6 @@ COMMAND_REGISTRY: list[CommandDef] = [
                args_hint="<prompt>"),
     CommandDef("goal", "Set a standing goal Hermes works on across turns until achieved", "Session",
                args_hint="[text | pause | resume | clear | status]"),
-    CommandDef("subgoal", "Add or manage checklist items on the active goal", "Session",
-               args_hint="[text | complete N | impossible N | undo N | remove N | clear]"),
     CommandDef("status", "Show session info", "Session"),
     CommandDef("whoami", "Show your slash command access (admin / user)", "Info"),
     CommandDef("profile", "Show active profile name and home directory", "Info"),