feat(ulw-loop): require Oracle verification before completion

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/hooks/ralph-loop/completion-handler.ts

@@ -0,0 +1,61 @@
+import type { PluginInput } from "@opencode-ai/plugin"
+import { log } from "../../shared/logger"
+import { buildContinuationPrompt } from "./continuation-prompt-builder"
+import { HOOK_NAME } from "./constants"
+import { injectContinuationPrompt } from "./continuation-prompt-injector"
+import type { RalphLoopState } from "./types"
+
+type LoopStateController = {
+	clear: () => boolean
+	markVerificationPending: (sessionID: string) => RalphLoopState | null
+}
+
+export async function handleDetectedCompletion(
+	ctx: PluginInput,
+	input: {
+		sessionID: string
+		state: RalphLoopState
+		loopState: LoopStateController
+		directory: string
+		apiTimeoutMs: number
+	},
+): Promise<void> {
+	const { sessionID, state, loopState, directory, apiTimeoutMs } = input
+
+	if (state.ultrawork && !state.verification_pending) {
+		const verificationState = loopState.markVerificationPending(sessionID)
+		if (!verificationState) {
+			log(`[${HOOK_NAME}] Failed to transition ultrawork loop to verification`, {
+				sessionID,
+			})
+			return
+		}
+
+		await injectContinuationPrompt(ctx, {
+			sessionID,
+			prompt: buildContinuationPrompt(verificationState),
+			directory,
+			apiTimeoutMs,
+		})
+
+		await ctx.client.tui?.showToast?.({
+			body: {
+				title: "ULTRAWORK LOOP",
+				message: "DONE detected. Oracle verification is now required.",
+				variant: "info",
+				duration: 5000,
+			},
+		}).catch(() => {})
+		return
+	}
+
+	loopState.clear()
+
+	const title = state.ultrawork ? "ULTRAWORK LOOP COMPLETE!" : "Ralph Loop Complete!"
+	const message = state.ultrawork
+		? `JUST ULW ULW! Task completed after ${state.iteration} iteration(s)`
+		: `Task completed after ${state.iteration} iteration(s)`
+	await ctx.client.tui?.showToast?.({
+		body: { title, message, variant: "success", duration: 5000 },
+	}).catch(() => {})
+}