fix for the issue#42

…ion (#47)

* feat: add support for SSL certificate verification in CLI and connection

* fix: ensure client is closed after connection attempt in CLI

* feat: add async execution and batched programmatic APIs

Add async QQL support with AsyncConnection and AsyncExecutor, plus sync
and async batching helpers for running multiple statements through one
programmatic API. Introduce BEGIN BATCH syntax, parameterized query
helpers, and optional gRPC connection settings.

Refactor shared parser and executor logic into qql.utils so sync and
async paths can reuse filter conversion, vector shaping, topology parsing,
batch grouping, and search parsing helpers.

Update tests and docs for async usage, batching, parameterized queries,
gRPC configuration, and batch block execution.

* feat: enhance batch processing with strict result count checks and null handling

* feat: enhance batch processing and query handling with improved error management and null support

* feat: enhance InExpr and NotInExpr handling with null support in filter building

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Co-authored-by: Srimon <srimon12mckv@gmail.com>

This reverts commit 4a1fa92.

#51)

* feat: add gRPC support with configurable options for Qdrant connection

* feat: improve error handling and parameter validation in Qdrant connection and executor