sync errors

db.py

@@ -110,9 +110,11 @@ def is_zip_processed(remote_path: str) -> bool:
 
 
 def get_all_processed_paths() -> set[str]:
-    """Return all processed remote paths as a set for fast bulk membership checks."""
+    """Return successfully-processed remote paths. Errored zips are excluded so they get retried."""
     with get_db() as conn:
-        rows = conn.execute("SELECT remote_path FROM processed_zips").fetchall()
+        rows = conn.execute(
+            "SELECT remote_path FROM processed_zips WHERE status = 'success'"
+        ).fetchall()
     return {row["remote_path"] for row in rows}
 
 
@@ -174,7 +176,8 @@ def get_recent_zips(limit: int = 50) -> list[sqlite3.Row]:
 def is_book_uploaded(file_hash: str) -> bool:
     with get_db() as conn:
         row = conn.execute(
-            "SELECT id FROM uploaded_books WHERE file_hash = ?", (file_hash,)
+            "SELECT id FROM uploaded_books WHERE file_hash = ? AND status IN ('uploaded', 'skipped_duplicate')",
+            (file_hash,),
         ).fetchone()
     return row is not None