Watch selected folders and reconcile bounded changes with media freshness guards

crates/searchi-service/src/store.rs

@@ -111,7 +111,7 @@ impl Store {
             |row| row.get(0),
         )?;
         ensure!(
-            (1..=7).contains(&version),
+            (1..=8).contains(&version),
             "Unsupported semantic schema version {version}"
         );
         initialization.execute_batch("
@@ -273,7 +273,7 @@ impl Store {
             )
         };
         let bytes: Vec<u8> = vector.iter().flat_map(|v| v.to_le_bytes()).collect();
-        self.connection.execute("INSERT INTO semantic_chunks(generation,passage_id,ordinal,path,kind,number,content_hash,start_byte,end_byte,snippet,vector,source_type,file_size,file_mtime) VALUES(?1,?2,?3,?4,?5,?6,?7,0,0,?8,?9,?10,?11,?12)",params![generation,-file_id,ordinal as i64,path,kind,timestamp,identity.sha256,snippet,bytes,source_type,identity.bytes as i64,identity.modified_ns])?;
+        self.connection.execute("INSERT INTO semantic_chunks(generation,passage_id,ordinal,path,kind,number,content_hash,start_byte,end_byte,snippet,vector,source_type,file_size,file_mtime,file_change_revision) VALUES(?1,?2,?3,?4,?5,?6,?7,0,0,?8,?9,?10,?11,?12,(SELECT change_revision FROM files WHERE path=?4))",params![generation,-file_id,ordinal as i64,path,kind,timestamp,identity.sha256,snippet,bytes,source_type,identity.bytes as i64,identity.modified_ns])?;
         Ok(())
     }
 
@@ -991,7 +991,7 @@ fn collect_eligibility(
     };
     let mut statement=connection.prepare(&format!("SELECT c.rowid,c.passage_id,c.content_hash,p.text,c.path,c.source_type FROM semantic_chunks c
         LEFT JOIN passages p ON c.source_type='text' AND p.rowid=c.passage_id AND p.file_path=c.path AND p.kind=c.kind AND p.number=c.number
-        JOIN files f ON f.path=c.path WHERE c.generation=?1 AND ((c.source_type='text' AND p.rowid IS NOT NULL) OR (c.source_type!='text' AND c.file_size=f.size AND c.file_mtime=f.mtime))
+        JOIN files f ON f.path=c.path WHERE c.generation=?1 AND ((c.source_type='text' AND p.rowid IS NOT NULL) OR (c.source_type!='text' AND c.file_size=f.size AND c.file_mtime=f.mtime AND c.file_change_revision=f.change_revision))
         AND (?2 IS NULL OR substr(f.path,1,length(?2))=?2) AND (?3 IS NULL OR f.extension=?3)
         AND (?4 IS NULL OR f.size>=?4) AND (?5 IS NULL OR f.size<=?5)
         AND (?6 IS NULL OR f.mtime/1000000>=?6) AND (?7 IS NULL OR f.mtime/1000000<=?7)