chore: bump version to 0.1.6

Author: anaslimem

Cargo.lock

@@ -2,7 +2,7 @@
 
 [![License: MIT/Apache-2.0](https://img.shields.io/badge/License-MIT%2FApache--2.0-blue.svg)](LICENSE)
 [![Status: Beta](https://img.shields.io/badge/Status-Beta-brightgreen.svg)](#current-status)
-[![Version](https://img.shields.io/badge/Version-0.1.5-blue.svg)](https://github.com/anaslimem/CortexaDB/releases)
+[![Version](https://img.shields.io/badge/Version-0.1.6-blue.svg)](https://github.com/anaslimem/CortexaDB/releases)
 [![PyPI Downloads](https://static.pepy.tech/personalized-badge/cortexadb?period=total&units=INTERNATIONAL_SYSTEM&left_color=GRAY&right_color=BLUE&left_text=downloads)](https://pepy.tech/projects/cortexadb)
 
 **CortexaDB** is a simple, fast, and hard-durable embedded database designed specifically for AI agent memory. It provides a single-file-like experience (no server required) but with native support for vectors, graphs, and temporal search.
@@ -11,7 +11,7 @@ Think of it as **SQLite, but with semantic and relational intelligence for your
 
 ---
 
-## What's New in v0.1.5
+## What's New in v0.1.6
 
 - **Benchmark Suite** - Added comprehensive benchmarking with HNSW vs Exact comparison
 - **HNSW Performance Fix** - Fixed segmentation fault issue with usearch
@@ -347,7 +347,7 @@ python benchmark/run_benchmark.py \
 ---
 
 ## License & Status
-CortexaDB is currently in **Beta (v0.1.5)**. It is released under the **MIT** and **Apache-2.0** licenses.  
+CortexaDB is currently in **Beta (v0.1.6)**. It is released under the **MIT** and **Apache-2.0** licenses.  
 We are actively refining the API and welcome feedback!
 
 ---

README.md

@@ -1,6 +1,6 @@
 [package]
 name = "cortexadb-core"
-version = "0.1.5"
+version = "0.1.6"
 edition = "2021"
 authors = ["Anas Limem <limemanas0@gmail.com>"]
 description = "Fast, embedded vector + graph memory for AI agents"

crates/cortexadb-core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cortexadb-py"
-version = "0.1.5"
+version = "0.1.6"
 edition = "2021"
 
 [lib]

crates/cortexadb-py/Cargo.toml

@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "cortexadb"
-version = "0.1.5"
+version = "0.1.6"
 requires-python = ">=3.9"
 description = "Fast, embedded vector + graph memory for AI agents"
 authors = [