0.28.0: Telegram Workspace Restore and Runtime Resilience

• Workspace and Routing: Advances Telegram to 0.52.0 with conservative Workspace Restore, shared Reroute/Restore/Cancel controls, temporary-Thread lifetimes and 60-minute prompt choice expiry. Strict journal proofs remain required; Windows Restore fails closed. Other pins, resource ownership and load order are unchanged.
• Runtime Resilience: Telegram uses tmp/pi-telegram without migrating old storage, absorbs repeated follower delivery within a bounded process-local window and resets damaged shared state on connection, discarding all profiles' runtime continuity. Queues remain session-local: drain or accept waiting-work loss before reload/restart. Animated stickers no longer enter image payloads.