feat: Add Pushover notification channel

- Adds Pushover as a new notification channel option. Includes fields for `api_token` and `user_key` in the `alert_configurations` schema and integrates it into the channel type dropdown and form handling.

application/src/components/settings/notification-settings/NotificationChannelDialog.tsx

@@ -36,7 +36,7 @@ interface NotificationChannelDialogProps {
 
 const baseSchema = z.object({
   notify_name: z.string().min(1, "Name is required"),
-  notification_type: z.enum(["telegram", "discord", "slack", "signal", "google_chat", "email", "ntfy", "webhook"]),
+  notification_type: z.enum(["telegram", "discord", "slack", "signal", "google_chat", "email", "ntfy", "pushover", "webhook"]),
   enabled: z.boolean().default(true),
   service_id: z.string().default("global"),
   template_id: z.string().optional(),
@@ -89,6 +89,12 @@ const webhookSchema = baseSchema.extend({
   webhook_payload_template: z.string().optional(),
 });
 
+const pushoverSchema = baseSchema.extend({
+  notification_type: z.literal("pushover"),
+  api_token: z.string().min(1, "API token is required"),
+  user_key: z.string().min(1, "User key is required"),
+});
+
 const formSchema = z.discriminatedUnion("notification_type", [
   telegramSchema,
   discordSchema,
@@ -97,7 +103,8 @@ const formSchema = z.discriminatedUnion("notification_type", [
   googleChatSchema,
   emailSchema,
   ntfySchema,
-  webhookSchema
+  pushoverSchema,
+  webhookSchema,
 ]);
 
 type FormValues = z.infer<typeof formSchema>;
@@ -145,6 +152,12 @@ const notificationTypeOptions = [
     description: "Send notifications via NTFY push service",
     icon: "/upload/notification/ntfy.png" 
   },
+  { 
+    value: "pushover", 
+    label: "Pushover", 
+    description: "Send push notifications via Pushover",
+    icon: "/upload/notification/pushover.png" 
+  },
   { 
     value: "webhook", 
     label: "Webhook", 
@@ -571,6 +584,43 @@ export const NotificationChannelDialog = ({
               />
             )}
 
+             {notificationType === "pushover" && (
+              <>
+                <FormField
+                  control={form.control}
+                  name="api_token"
+                  render={({ field }) => (
+                    <FormItem>
+                      <FormLabel>API Token</FormLabel>
+                      <FormControl>
+                        <Input placeholder="Your Pushover API token" {...field} type="password" />
+                      </FormControl>
+                      <FormDescription>
+                        Your Pushover application API token
+                      </FormDescription>
+                      <FormMessage />
+                    </FormItem>
+                  )}
+                />
+                <FormField
+                  control={form.control}
+                  name="user_key"
+                  render={({ field }) => (
+                    <FormItem>
+                      <FormLabel>User Key</FormLabel>
+                      <FormControl>
+                        <Input placeholder="Your Pushover user key" {...field} />
+                      </FormControl>
+                      <FormDescription>
+                        Your Pushover user key (or group key)
+                      </FormDescription>
+                      <FormMessage />
+                    </FormItem>
+                  )}
+                />
+              </>
+            )}
+            
             {notificationType === "webhook" && (
               <>
                 <FormField

application/src/services/alertConfigService.ts

@@ -7,7 +7,7 @@ export interface AlertConfiguration {
   collectionId?: string;
   collectionName?: string;
   service_id: string;
-  notification_type: "telegram" | "discord" | "slack" | "signal" | "google_chat" | "email" | "ntfy" | "webhook";
+  notification_type: "telegram" | "discord" | "slack" | "signal" | "google_chat" | "email" | "ntfy" | "pushover" | "webhook";
   telegram_chat_id?: string;
   discord_webhook_url?: string;
   signal_number?: string;
@@ -29,6 +29,8 @@ export interface AlertConfiguration {
   webhook_id?: string;
   channel_id?: string;
   ntfy_endpoint?: string;
+  api_token?: string;
+  user_key?: string;
   webhook_url?: string;
   webhook_payload_template?: string;
 }
@@ -86,6 +88,10 @@ export const alertConfigService = {
       } else if (config.notification_type === "ntfy") { 
         cleanConfig.ntfy_endpoint = config.ntfy_endpoint || "";
 
+      } else if (config.notification_type === "pushover") {       
+        cleanConfig.api_token = config.api_token || "";
+        cleanConfig.user_key = config.user_key || "";
+        
       } else if (config.notification_type === "webhook") {
         cleanConfig.webhook_url = config.webhook_url || "";
         cleanConfig.webhook_payload_template = config.webhook_payload_template || "";