Add Discord webhook formatting and dispatch logging

Discord webhooks require a specific payload format (embeds), not raw
JSON. Auto-detect Discord URLs and send colored embeds with card/board
details. Also adds logging for webhook dispatch debugging.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/lib/server/webhooks.ts

@@ -1,9 +1,67 @@
 import { prisma } from './db.js';
+import { logger } from './logger.js';
 import crypto from 'crypto';
 
 export async function dispatchWebhooks(tenantId: string, event: string, data: any) {
 	// Don't await this - fire and forget
-	doDispatch(tenantId, event, data).catch(() => {});
+	doDispatch(tenantId, event, data).catch((err) => {
+		logger.error({ err, tenantId, event }, 'webhook dispatch failed');
+	});
+}
+
+function isDiscordWebhook(url: string): boolean {
+	return url.startsWith('https://discord.com/api/webhooks/') ||
+		url.startsWith('https://discordapp.com/api/webhooks/');
+}
+
+function formatDiscordPayload(event: string, data: any): object {
+	const colors: Record<string, number> = {
+		'card:created': 0x22c55e,   // green
+		'card:updated': 0x3b82f6,   // blue
+		'card:moved': 0xf59e0b,     // amber
+		'card:deleted': 0xef4444,   // red
+		'column:created': 0x10b981, // emerald
+		'column:deleted': 0xf97316, // orange
+		'board:updated': 0x8b5cf6,  // purple
+	};
+
+	const titles: Record<string, string> = {
+		'card:created': 'Card Created',
+		'card:updated': 'Card Updated',
+		'card:moved': 'Card Moved',
+		'card:deleted': 'Card Deleted',
+		'column:created': 'Column Created',
+		'column:deleted': 'Column Deleted',
+		'board:updated': 'Board Updated',
+	};
+
+	const fields: { name: string; value: string; inline?: boolean }[] = [];
+
+	if (data.card) {
+		fields.push({ name: 'Card', value: data.card.title || data.card.id || 'Unknown', inline: true });
+	}
+	if (data.column) {
+		fields.push({ name: 'Column', value: data.column.title || data.column.id || 'Unknown', inline: true });
+	}
+	if (data.board) {
+		fields.push({ name: 'Board', value: data.board.title || data.board.id || 'Unknown', inline: true });
+	}
+	if (event === 'card:deleted') {
+		fields.push({ name: 'Card ID', value: data.cardId || 'Unknown', inline: true });
+	}
+	if (event === 'column:deleted') {
+		fields.push({ name: 'Column ID', value: data.columnId || 'Unknown', inline: true });
+	}
+
+	return {
+		embeds: [{
+			title: titles[event] || event,
+			color: colors[event] || 0x6b7280,
+			fields,
+			timestamp: new Date().toISOString(),
+			footer: { text: 'Pounce' }
+		}]
+	};
 }
 
 async function doDispatch(tenantId: string, event: string, data: any) {
@@ -11,19 +69,39 @@ async function doDispatch(tenantId: string, event: string, data: any) {
 		where: { tenantId, active: true, events: { has: event } }
 	});
 
-	const payload = JSON.stringify({ event, data, timestamp: new Date().toISOString() });
+	logger.info({ tenantId, event, webhookCount: webhooks.length }, 'dispatching webhooks');
+
+	if (webhooks.length === 0) return;
 
 	for (const webhook of webhooks) {
-		const signature = crypto.createHmac('sha256', webhook.secret).update(payload).digest('hex');
+		const isDiscord = isDiscordWebhook(webhook.url);
 
-		fetch(webhook.url, {
-			method: 'POST',
-			headers: {
+		let body: string;
+		let headers: Record<string, string>;
+
+		if (isDiscord) {
+			body = JSON.stringify(formatDiscordPayload(event, data));
+			headers = { 'Content-Type': 'application/json' };
+		} else {
+			body = JSON.stringify({ event, data, timestamp: new Date().toISOString() });
+			const signature = crypto.createHmac('sha256', webhook.secret).update(body).digest('hex');
+			headers = {
 				'Content-Type': 'application/json',
 				'X-Pounce-Signature': signature,
 				'X-Pounce-Event': event
-			},
-			body: payload
-		}).catch(() => {});
+			};
+		}
+
+		fetch(webhook.url, { method: 'POST', headers, body })
+			.then((res) => {
+				if (!res.ok) {
+					res.text().then((text) => {
+						logger.warn({ webhookId: webhook.id, status: res.status, event, response: text.slice(0, 200) }, 'webhook delivery failed');
+					});
+				}
+			})
+			.catch((err) => {
+				logger.warn({ err, webhookId: webhook.id, event }, 'webhook delivery error');
+			});
 	}
 }