Bluesky blew through max int number of messages

Well, end of an era I guess. Time to use a bigger (bigint) cursor.

Interestingly enough, some of Rust parts were already using an i64,
but others weren't. Huh.

sql/04_change_cursor_type_to_bigint.sql

@@ -0,0 +1 @@
+ALTER TABLE SubscriptionState ALTER COLUMN cursor TYPE BIGINT;

src/services/bluesky/client.rs

@@ -145,7 +145,7 @@ impl Bluesky {
     pub async fn subscribe_to_operations<P: CommitProcessor>(
         &self,
         processor: &P,
-        cursor: Option<i32>,
+        cursor: Option<i64>,
     ) -> Result<()> {
         let url = match cursor {
             Some(cursor) => format!(

src/services/database.rs

@@ -213,7 +213,7 @@ impl Database {
         .await?)
     }
 
-    pub async fn fetch_subscription_cursor(&self, host: &str, did: &str) -> Result<Option<i32>> {
+    pub async fn fetch_subscription_cursor(&self, host: &str, did: &str) -> Result<Option<i64>> {
         let mut params = Parameters::new();
 
         Ok(query(