fix: add credentials to all fetch calls for auth cookie support (#72)

* fix: add credentials to all fetch calls for auth cookie support

- Add credentials: include to useMedications.ts fetch calls
- Add credentials: include to MedicationsPage.tsx save function
- Add credentials: include to useSettings.ts settings update
- Add credentials: include to useShare.ts share generation
- Add credentials: include to DashboardPage.tsx reminder email
- Add credentials: include to PlannerPage.tsx usage calculation
- Make create-release workflow skip if release already exists

* fix: default to ntfy-style notifications for HTTP URLs

- Change notification logic to use plain text format by default
- Only use JSON format for known webhook services (Discord, Slack, Telegram, Gotify)
- This fixes ntfy URLs not being recognized when hostname doesn't contain 'ntfy'

* feat: highlight medication being edited

- Add blue border and background to the medication row being edited
- Show medication avatar and name in the edit form header
- Makes it easy to identify which medication is being edited when there are many

* fix: use proper URL parsing for webhook detection (CodeQL security fix)

Replace vulnerable .includes() URL checks with proper URL hostname
parsing to prevent bypass attacks (e.g., evil.com?hooks.slack.com).

Fixes CodeQL alerts #33 and #34 (js/incomplete-url-substring-sanitization)

backend/src/routes/settings.ts

@@ -482,10 +482,33 @@ export async function sendShoutrrrNotification(
 			)
 			.trim();
 
-		// Determine notification type based on validation result and URL pattern
-		const isNtfyUrl = isNtfy || sanitizedUrl.includes("ntfy.sh") || sanitizedUrl.includes("/ntfy/");
+		// Determine notification type based on URL hostname
+		// Use JSON format only for known webhook services that require it
+		// Use proper URL parsing to prevent bypass attacks (e.g., evil.com?hooks.slack.com)
+		let isJsonWebhook = false;
+		try {
+			const parsedUrl = new URL(sanitizedUrl);
+			const hostname = parsedUrl.hostname.toLowerCase();
+			const pathname = parsedUrl.pathname.toLowerCase();
 
-		if (isNtfyUrl) {
+			isJsonWebhook =
+				// Discord webhooks
+				((hostname === "discord.com" || hostname === "discordapp.com") && pathname.startsWith("/api/webhooks")) ||
+				// Slack webhooks
+				hostname === "hooks.slack.com" ||
+				hostname.endsWith(".hooks.slack.com") ||
+				// Telegram API
+				hostname === "api.telegram.org" ||
+				// Gotify (can be self-hosted, so check if "gotify" is in hostname)
+				hostname.includes("gotify");
+		} catch {
+			// If URL parsing fails, default to ntfy-style
+			isJsonWebhook = false;
+		}
+
+		// Default to ntfy-style (plain text with Title header) for all other HTTP URLs
+		// This works for ntfy, Apprise, and most simple push services
+		if (!isJsonWebhook) {
 			targetUrl = sanitizedUrl;
 			headers = { Title: cleanTitle, Tags: "pill" };
 			body = message;