refactor(#89): Address PR comments

src/routes/api/export-integrations/[provider]/+server.ts

@@ -26,6 +26,9 @@ export const PUT = async (event: RequestEvent) => {
 		const patch: Record<string, unknown> = {};
 		if (body.folderId !== undefined) patch.folderId = body.folderId;
 		if (body.path !== undefined) patch.path = body.path;
+		if (Object.keys(patch).length === 0) {
+			return json({ error: 'No fields to update' }, { status: 400 });
+		}
 
 		const { data, error } = await event.locals.supabase
 			.from('pokedex_export_integrations')

src/routes/api/integrations/dropbox/connect/+server.ts

@@ -31,7 +31,10 @@ export const GET = async (event: RequestEvent) => {
 	const env = getEnv();
 	const clientId = env.DROPBOX_OAUTH_CLIENT_ID;
 	if (!clientId) {
-		throw redirect(302, `/pokedex/${pokedexId}?export=dropbox-missing-client`);
+		const missingClientRedirect = pokedexId
+			? `/pokedex/${pokedexId}?export=dropbox-missing-client`
+			: '/pokedex?export=dropbox-missing-client';
+		throw redirect(302, missingClientRedirect);
 	}
 
 	const state = createOAuthState();

src/routes/api/integrations/google-drive/callback/+server.ts

@@ -89,16 +89,21 @@ export const GET = async (event: RequestEvent) => {
 		const fileName = oauthState.fileName?.trim() ? oauthState.fileName : null;
 		const folderId = oauthState.folderId?.trim() ? oauthState.folderId : null;
 
-		await repo.upsert({
-			provider: 'google_drive',
-			enabled: true,
-			fileName,
-			folderId,
-			accessToken: tokenData.access_token,
-			refreshToken: tokenData.refresh_token ?? null,
-			accessTokenExpiresAt: expiresAt,
-			metadata: tokenData.scope ? { scope: tokenData.scope } : null
-		});
+		try {
+			await repo.upsert({
+				provider: 'google_drive',
+				enabled: true,
+				fileName,
+				folderId,
+				accessToken: tokenData.access_token,
+				refreshToken: tokenData.refresh_token ?? null,
+				accessTokenExpiresAt: expiresAt,
+				metadata: tokenData.scope ? { scope: tokenData.scope } : null
+			});
+		} catch (saveError) {
+			console.error('Google Drive integration save failed:', saveError);
+			throw redirect(302, `${returnTo}-error`);
+		}
 
 		throw redirect(302, `${returnTo}-connected`);
 	} catch (err) {

src/routes/api/integrations/google-drive/connect/+server.ts

@@ -31,7 +31,10 @@ export const GET = async (event: RequestEvent) => {
 	const env = getEnv();
 	const clientId = env.GOOGLE_OAUTH_CLIENT_ID;
 	if (!clientId) {
-		throw redirect(302, `/pokedex/${pokedexId}?export=google-missing-client`);
+		const missingClientRedirect = pokedexId
+			? `/pokedex/${pokedexId}?export=google-missing-client`
+			: '/pokedex?export=google-missing-client';
+		throw redirect(302, missingClientRedirect);
 	}
 
 	const state = createOAuthState();

src/routes/backup-settings/+page.svelte

@@ -121,6 +121,7 @@
 								<a
 									href={getGoogleFolderUrl(googleIntegration.folderId)}
 									target="_blank"
+									rel="noopener noreferrer"
 									class="link link-primary"
 								>
 									Open Drive folder
@@ -156,6 +157,7 @@
 								<a
 									href={getDropboxFolderUrl(dropboxIntegration.path)}
 									target="_blank"
+									rel="noopener noreferrer"
 									class="link link-primary"
 								>
 									Open Dropbox folder

src/routes/pokedex/[id]/+page.svelte

@@ -64,6 +64,21 @@
 	let exportInFlightGeneration = 0;
 	let toggleFlushTimer: ReturnType<typeof setTimeout> | null = null;
 
+	function resetExportState() {
+		if (exportTimer) {
+			clearTimeout(exportTimer);
+			exportTimer = null;
+		}
+		if (toggleFlushTimer) {
+			clearTimeout(toggleFlushTimer);
+			toggleFlushTimer = null;
+		}
+		exportAfterFlush = false;
+		exportInFlight = false;
+		exportGeneration = 0;
+		exportInFlightGeneration = 0;
+	}
+
 	function scheduleExportIfIdle() {
 		if (!browser) return;
 		if (!pokedexId) return;
@@ -77,10 +92,15 @@
 			exportInFlight = true;
 			exportInFlightGeneration = exportGeneration;
 			try {
-				await fetch(`/api/pokedexes/${pokedexId}/export`, {
+				const response = await fetch(`/api/pokedexes/${pokedexId}/export`, {
 					method: 'POST',
 					credentials: 'include'
 				});
+				if (!response.ok) {
+					const body = await response.text().catch(() => '');
+					console.error('Auto-export failed:', response.status, body);
+					return;
+				}
 				if (exportGeneration === exportInFlightGeneration) {
 					exportAfterFlush = false;
 				}
@@ -121,6 +141,9 @@
 		catchWriteQueueUnsubscribe?.();
 		catchWriteQueueUnsubscribe = null;
 	});
+	onDestroy(() => {
+		resetExportState();
+	});
 
 	function openPokemonModal(pokemon: CombinedData) {
 		selectedPokemon = pokemon;
@@ -139,6 +162,8 @@
 		const desiredKey = `${localUser.id}:${pokedexId}`;
 		if (catchWriteQueue && catchWriteQueueKey === desiredKey) return;
 
+		resetExportState();
+
 		// Unsubscribe from the previous queue's status store before replacing the queue.
 		catchWriteQueueUnsubscribe?.();
 		catchWriteQueueUnsubscribe = null;