Shared Room Conversation Flow and Context Accuracy Improvements

Improvements

• In a shared room, Orion's answer now stays where it was asked—messages people send while Orion is still writing appear below the answer instead of pushing it down, so a conversation reads in the order it happened.
• Slide Decks built from saved templates now fill in placeholder company and metric names with the real ones, so finished presentations no longer contain template text like "[Company Name]".