Release server/v0.9.1

• Improvements to auto-continue check. Plandex now does a better job determining whether a plan is finished or should automatically continue by incorporating the either the latest plan summary or the previous conversation message (if the summary isn't ready yet) into the auto-continue check. Previously the check was using only the latest conversation message.
• Fix for 'exit status 128' errors in a couple of edge case scenarios.
• Data that is piped into plandex load is now automatically given a name in context ls via a call to the namer role model (previously it had no name, making multiple pipes hard to disambiguate).