v0.1.20: Fix LangGraph API parameter

v0.1.19: Use LangGraph for chat agent

v0.1.18: Fix chat agent LangChain error

v0.1.17: Fix API key validation in config command

v0.1.16: PyPI publishing, interactive AI config, model selector

Features:
- PyPI Publishing with GitHub Actions (trusted publishing/OIDC)
- Interactive AI Setup: cyberzard config command
- Pre-action AI Verification for agent/chat commands
- Model Selector System (OpenAI/Anthropic/xAI)
- MCP Server for AI agent integration
- Unified Tool System with schemas

Changes:
- Installation docs recommend PyPI as primary method
- README badges: PyPI version/downloads, Beta status
- advise warns when AI not configured
- providers suggests cyberzard config

Fix GitHub Actions runner availability issue

- Switch from ubuntu-20.04 to ubuntu-22.04 for better runner availability
- Add --strip flag to PyInstaller for more portable binaries
- Resolves stuck workflow issue with deprecated ubuntu-20.04 runners
- Bumps version to 0.1.15 for new release

Fix GLIBC compatibility by using Ubuntu 20.04 for builds

- Switch from ubuntu-latest to ubuntu-20.04 for binary builds
- Improves compatibility with older Linux systems (GLIBC 2.31+)
- Resolves 'GLIBC_2.38 not found' error on target systems
- Bumps version to 0.1.14 for new release

Fix lazy initialization of LangChain components

- ChatOpenAI model and agent now initialize only when chat is used
- Prevents OpenAIError during binary smoke test when API key not set
- Resolves 'api_key client option must be set' error at import time
- Bumps version to 0.1.13 for new release

Fix PyInstaller to include complete LangChain dependencies

- Install langchain, langchain-community, langchain-core packages
- Add comprehensive hidden imports and collect-all for LangChain modules
- Resolves ModuleNotFoundError for langchain.agents during binary execution
- Bumps version to 0.1.12 for new release

Fix PyInstaller to include Textual dependencies

- Install textual during CI build step
- Add hidden imports for textual modules to PyInstaller
- Ensures TUI functionality works in binary distribution
- Bumps version to 0.1.11 for new release