Final completeness by time window: ranges keep their posting span, release_final() over blocks of done ranges

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

edge/src/main.rs

@@ -96,7 +96,11 @@ fn dump_batch(batch: &Batch, out: &mut impl Write) {
         out.write_all(line.as_bytes()).unwrap();
         line.clear();
     };
-    line.push_str(&format!("{{\"t\":\"b\",\"from\":{},\"next\":{},\"headers\":{}}}", batch.from, batch.next, batch.headers));
+    let opt = |t: Option<i64>| t.map_or("null".to_string(), |t| t.to_string());
+    line.push_str(&format!(
+        "{{\"t\":\"b\",\"from\":{},\"next\":{},\"headers\":{},\"postedLow\":{},\"postedHigh\":{}}}",
+        batch.from, batch.next, batch.headers, opt(batch.posted_low), opt(batch.posted_high)
+    ));
     emit(&mut line);
     let release = |r: &indexer::ReleaseChunk, kind: &str, line: &mut String| {
         line.push_str(&format!("{{\"t\":\"{kind}\",\"upload\":{},\"key\":", r.upload));