Add json-framed encoding, docs, refactor

crates/query/src/api4/binned.rs

@@ -160,6 +160,10 @@ impl HasTimeout for BinnedQuery {
     fn timeout(&self) -> Duration {
         self.timeout_value()
     }
+
+    fn set_timeout(&mut self, timeout: Duration) {
+        self.timeout = Some(timeout);
+    }
 }
 
 impl FromUrl for BinnedQuery {

crates/query/src/api4/events.rs

@@ -208,6 +208,10 @@ impl HasTimeout for PlainEventsQuery {
     fn timeout(&self) -> Duration {
         self.timeout()
     }
+
+    fn set_timeout(&mut self, timeout: Duration) {
+        self.timeout = Some(timeout);
+    }
 }
 
 impl FromUrl for PlainEventsQuery {