action/README: drop waitlist banner, point to GA console

also includes in-flight working-tree work:
- postRun: snapshot/restore toolState.output across reflection turn so reflection prompt can't clobber task-turn output (gemini pro regression)
- toolState: widen `output` to `string | undefined` for assignability
- uninstallFeedback: suspend-mode emails now CTA the GitHub unsuspend page when accountType is known; delete events keep console pointer

toolState.ts

@@ -170,7 +170,7 @@ export interface ToolState {
   // the error-path / exit-signal callers from a redundant second PATCH
   // after the success path already persisted.
   learningsPersistAttempted?: boolean;
-  output?: string;
+  output?: string | undefined;
   usageEntries: AgentUsage[];
   model?: string | undefined;
   // set by main.ts when the BYOK fallback engaged (configured model needed