revert: show cooldown for errored tools to prevent loop behavior

Reverts the change that only showed cooldown on completed tools.
Errored tools were getting stuck in loops because they would see
prunable context and try to prune again. Now they see the cooldown
message instead, which prevents immediate re-pruning.

Author: Tarquinen

lib/state/tool-cache.ts

@@ -44,10 +44,7 @@ export async function syncToolCache(
                     state.currentTurn - turnCounter < turnProtectionTurns
 
                 state.lastToolPrune =
-                    (part.tool === "prune" ||
-                        part.tool === "distill" ||
-                        part.tool === "compress") &&
-                    part.state.status === "completed"
+                    part.tool === "prune" || part.tool === "distill" || part.tool === "compress"
 
                 const allProtectedTools = config.tools.settings.protectedTools