Fix messaging task launch on uvloop (#1117)

Give messaging clear exact subtree semantics (#1072)

Preserve user messages during messaging clear (#1068)

Make Telegram startup notices clearable (#1066)

Use task status as the sole stop confirmation (#1065)

Keep voice ownership continuous through admission (#1063)

Make application shutdown completion-driven (#1056)

Make pending voice cancellation atomic (#1054)

Replace historical architecture tests with declarative boundaries (#1050)

Make messaging trees atomic ownership boundaries (#1048)

Canonicalize provider failure and retry ownership (#1046)

Replace global runtime resources with explicit ownership (#1042)

Establish single-owner runtime with stream-safe provider hot swaps (#1036)

Move runtime packages under src namespace (#1029)