Release v1.0.3

[choiahrok]

Summary

Release v1.0.3 published from CryptoLabInc/evi.

• Source commit: CryptoLabInc/evi@5ca3023d816f789a53ea6e20e0735ad64395b6db
• Target branch: release/v1.0.3
• Base branch: main

Changes

• Bump Python package version to 1.0.3.
• Add IP2 parameter support and extend MM-family eval modes with MMS, MM32, and MMS32 helpers.
• Add bit-packing and templated encode/decode utilities for 32-bit and 64-bit coefficient paths.
• Expand encryptor/decryptor, key generator, key pack, and secret key APIs for stream/file serialization and metadata-oriented workflows.
• Add metadata encryption/decryption helpers backed by AES-GCM and expose them through Python bindings.
• Rework key management around KeyStorageConfig, provider envelopes, lifecycle state, and provider-specific managers.
• Add local, Vault, AWS, and GCP key manager/provider support, including shared HTTP client plumbing for remote providers.
• Add audit logging types and audit store support for key management operations.
• Add sensitive-data guard/security utilities and harden key synchronization/serialization paths.
• Update examples for key generation, key management, key storage, and metadata encryption/decryption; remove the old km_kp example.
• Extend CMake options/build wiring for key management providers and Python bindings.

Tests

• Add C++ coverage for audit logging, encoding, key management providers, security utilities, serialization round trips, and key synchronization lifetime issues.
• Expand key management and key validation tests for lifecycle, wrapping/unwrapping, provider envelopes, and MM/MM32-related key paths.
• Add Python tests for key-manager lifecycle state handling and metadata encryption/decryption utility bindings.