- Replaced serde_json with serde_yaml in all handler endpoints.
- This drastically reduces token consumption for large list/graph responses by removing JSON braces and quotes.
- Optimized memory allocation in router.rs by offloading JSON serialization to spawn_blocking and using references.
- Prevented full graph duplication on startup in state.rs index rebuild.
- Eliminated massive String allocations in QueryGraphPathHandler BFS loops.
- Avoided temporary Strings in VisualizeGraphHandler via inline writing.
- Fixed O(N) full-graph deduplication in MergeEntitiesHandler to scale efficiently.
Riz Ashraf