ryo-suggest 0.1.0

[experimental] Pattern-based suggestion engine for RYO
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# ryo-suggest

[![crates.io](https://img.shields.io/crates/v/ryo-suggest.svg)](https://crates.io/crates/ryo-suggest)
[![docs.rs](https://docs.rs/ryo-suggest/badge.svg)](https://docs.rs/ryo-suggest)
[![License: MIT OR Apache-2.0](https://img.shields.io/badge/license-MIT%20OR%20Apache--2.0-blue.svg)](#license)

> **Status:** experimental. APIs may change in v0.x.
> Part of the [ryo](https://github.com/ynishi/ryo-rs) workspace —
> AST-centric Rust programming for AI agents.

Continuous-refactoring suggestion engine. Detects code-improvement
opportunities via pattern matching, then generates `MutationSpec`s
that downstream `ryo-executor` can apply. Suggestions are categorised
by safety level (Auto / Manual / Review) so callers can filter.

## Install

```sh
cargo add ryo-suggest
```

## Quickstart

```rust,ignore
use ryo_suggest::{SuggestService, SuggestRegistry, SuggestQuery, SafetyLevel};

let mut registry = SuggestRegistry::new();
registry.register(MyPattern::new());

let service = SuggestService::new(registry);
let count = service.detect(&ctx, &symbols);

let auto_safe = service.query(
    &SuggestQuery::all().with_max_safety(SafetyLevel::Auto)
);

for (id, _, _) in auto_safe {
    if let Some(specs) = service.to_mutation_specs(id, &ctx) {
        // Hand specs to ryo-executor
    }
}
```

## API Summary

| Item | Purpose |
|---|---|
| `SuggestRegistry` | Register pattern detectors |
| `SuggestStore` | Persistent storage for opportunities |
| `SuggestService` | Detect + query + spec generation |
| `Suggest` / `SuggestOpportunity` | Suggestion data types |
| `SuggestCategory` / `SafetyLevel` | Classification axes |
| `SuggestQuery` | Filter builder |

## Status

**Experimental.** Suggestion data model and detection API are evolving.
Production-quality stability is deferred to v1.0.

## License

Licensed under either of [Apache-2.0](https://github.com/ynishi/ryo-rs/blob/main/LICENSE-APACHE)
or [MIT](https://github.com/ynishi/ryo-rs/blob/main/LICENSE-MIT) at your option.