fix(android): show password action only for locked channels

crates/chanora_protocol/src/dto.rs

@@ -23,6 +23,8 @@ pub struct ChannelInfo {
     pub name: String,
     /// Server-side ordering hint.
     pub order: i64,
+    /// True when the server marks the channel as password-protected.
+    pub has_password: bool,
 }
 
 /// One connected client on the server.