v0.2.0

Added

• LLM-Rosetta Gateway: REST gateway application for cross-provider HTTP proxying
• CLI entry point (llm-rosetta-gateway) and package structure for the gateway
• Gateway config auto-discovery at ./config.jsonc, ~/.config/llm-rosetta-gateway/config.jsonc, ~/.llm-rosetta-gateway/config.jsonc
• --edit / -e flag to open config file in $EDITOR (falls back to nano/vi/vim)
• --version / -V flag showing current version
• ASCII art startup banner with --no-banner to suppress
• add provider <name> subcommand for adding provider entries to config (with --api-key, --base-url flags or interactive prompts; known providers auto-fill defaults)
• add model <name> subcommand for adding model routing entries (with --provider flag or interactive prompt)
• init subcommand to create a template config.jsonc at the XDG default location
• Gateway providers module (providers.py): centralized provider definitions with auth-header builders, URL templates, default base URLs, and API key env-var names
• API key rotation: round-robin KeyRing for comma-separated API keys per provider
• Proxy support: global server.proxy and per-provider proxy config for HTTP/SOCKS proxies; CLI --proxy flag overrides config
• Model listing endpoints: GET /v1/models (compatible with both OpenAI and Anthropic SDKs) and GET /v1beta/models (Google GenAI SDK format) — enables client.models.list() across all three SDKs (#54)
• Standalone API test scripts (llm_api_simple_tests/): 20 test scripts (5 per provider) using official SDKs directly, covering simple query, multi-round chat, image, function calling, and comprehensive scenarios
• Makefile test-integration and test-gateway targets

Changed

• Bumped minimum Python to 3.10+; migrated to stdlib typing (removed typing_extensions)
• Applied ruff formatter across the entire codebase
• Updated Makefile with lint, test, and build targets
• Added ty (type checker) configuration
• Configured ruff lint rules (E, F, UP) in pyproject.toml; ignore UP007 (Union syntax) and E501 (line length)
• Modernized typing imports across src/, tests/, examples/, and scripts/

Fixed

• Streaming crash with Anthropic provider when usage tokens are null — TypeError: NoneType + int in all converters
• Gateway provider base_url validation — fail early with clear error on config typos
• Added socksio to gateway dependencies for SOCKS proxy support
• Resolved all ty type checker diagnostics in src/ (31 → 0) and tests/ (1506 → 0)
• Resolved all ruff lint violations in src/ and tests/
• Google thought_signature preservation through gateway round-trips (#51)
• OpenAI Responses converter now handles all 3 input formats: bare string, shorthand list, and structured list
• Special characters in model names for Google GenAI routes (#53)
• Streaming SSE events crash in gateway mode (#52)
• Serialize dict tool_result content to JSON for Anthropic API