Add markdown_plain_text and use in notifications

Introduce a text utility (markdown_plain_text) that strips bold markdown markers and collapses whitespace/newlines into single spaces. Export the helper from the support crate and apply it in SupportClient to sanitize message content for push notifications. Includes a unit test for the sanitizer.

Author: gemcoder21

core/crates/support/src/client.rs

@@ -1,6 +1,7 @@
 use crate::{
     ChatwootWebhookPayload,
     constants::{EVENT_CONVERSATION_STATUS_CHANGED, EVENT_CONVERSATION_UPDATED, EVENT_MESSAGE_CREATED},
+    markdown_plain_text,
 };
 use cacher::CacherClient;
 use localizer::LanguageLocalizer;
@@ -68,7 +69,7 @@ impl SupportClient {
         }
 
         let title = LanguageLocalizer::new_with_language(device.locale.as_str()).notification_support_new_message_title();
-        let message = payload.content.clone().unwrap_or_default();
+        let message = markdown_plain_text(payload.content.as_deref().unwrap_or_default());
         let data = PushNotification {
             notification_type: PushNotificationTypes::Support,
             data: serde_json::to_value(PushNotificationSupport {}).ok(),

core/crates/support/src/lib.rs

@@ -2,7 +2,9 @@ mod chatwoot;
 mod client;
 mod constants;
 mod model;
+mod text;
 
 pub use chatwoot::ChatwootClient;
 pub use client::SupportClient;
 pub use model::*;
+pub use text::markdown_plain_text;

core/crates/support/src/text.rs

@@ -0,0 +1,26 @@
+pub fn markdown_plain_text(message: &str) -> String {
+    let message = message.replace("**", "");
+    let mut result = String::with_capacity(message.len());
+
+    for word in message.split_whitespace() {
+        if !result.is_empty() {
+            result.push(' ');
+        }
+        result.push_str(word);
+    }
+
+    result
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_markdown_plain_text() {
+        assert_eq!(
+            markdown_plain_text("Gem Wallet charges a **0.5% fee** on all swaps.\nFAQ: https://docs.gemwallet.com/faq/swap-fees"),
+            "Gem Wallet charges a 0.5% fee on all swaps. FAQ: https://docs.gemwallet.com/faq/swap-fees"
+        );
+    }
+}