mermaid-model 0.21.1

Model-layer core for Mermaid: provider adapters, wire types, capability catalog, and the shared utilities they need.
Documentation 
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// Gateway module for models
// All external access must go through this gateway

pub mod adapters; // Provider adapters (Ollama, OpenAI-compatible) — wrapped by providers/model/*
mod capabilities; // Per-model capability flags
pub mod catalog; // Data-driven model-capability catalog (first-match-wins const table)
pub mod config; // Unified configuration
mod error; // Structured error types
mod providers; // OpenAI-compatible provider profiles + registry
mod reasoning; // ReasoningLevel, ReasoningCapability, nearest_effort
pub mod retry; // Transient-HTTP retry policy shared by every adapter
mod stream; // Typed StreamEvent enum
pub mod tool_call; // Tool call parsing (native function calling)

mod traits; // Model trait (public API)
mod types; // Core types (ChatMessage, etc)

// Public re-exports — the ONLY way to access model functionality
pub use capabilities::ModelCapabilities;
pub use config::{BackendConfig, ModelConfig, OllamaOptions};
pub use error::{
    BackendError, ConfigError, ErrorCategory, ModelError, ResponseDebugContext, Result,
    UserFacingError,
};
pub use providers::{
    CompatStyle, MaxTokensParam, ProviderProfile, REGISTRY as PROVIDER_REGISTRY,
    ReasoningExtraction, ReasoningStrategy, lookup_provider,
};
pub use reasoning::{ReasoningCapability, ReasoningChunk, ReasoningLevel, nearest_effort};
pub use stream::{StreamCallback, StreamEvent};
pub use tool_call::{FunctionCall, ToolCall};

pub use traits::Model;
pub use types::{
    ChatMessage, ChatMessageKind, FinishReason, MessageAudience, MessageRole, MetaResponseItem,
    ModelResponse, ProviderContinuation, TokenUsage, TokenUsageSource,
};