fix: refresh pi dependency compatibility

Update Pi packages to 0.79.9 and align pi-ask with current TUI/RPC behavior.

- guard custom ask/settings flows to TUI mode with a clear non-TUI fallback

- reset config cache on extension reload so edited settings are picked up

- clean up remote ask flow listeners on session shutdown

- forward editor focus/invalidation and keep @ file autocomplete explicit

- document the non-TUI contract and cover the compatibility fixes with tests

src/ask-tool-helpers.ts

@@ -153,8 +153,8 @@ function formatNonInteractiveMessage(
 	state: ReturnType<typeof createInitialState>
 ): string {
 	const lines = [
-		"Needs user input: ask_user requires interactive UI.",
-		"Run same tool call in interactive session, or ask user these questions manually:",
+		"Needs user input: ask_user requires interactive TUI mode.",
+		"Run same tool call in interactive TUI mode, or ask user these questions manually:",
 	];
 
 	for (const [index, question] of state.questions.entries()) {