docs: add README with quick start and docs links

Co-Authored-By: Virgil <virgil@lethean.io>

README.md

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+# go-ml
+
+ML inference backends, multi-suite scoring engine, and agent orchestrator for the Lethean AI stack. The package provides pluggable backends (Apple Metal via go-mlx, managed llama-server subprocesses, and OpenAI-compatible HTTP APIs), a concurrent scoring engine that evaluates model responses across heuristic, semantic, content, and standard benchmark suites, 23 capability probes, GGUF model management, and an SSH-based agent orchestrator that streams checkpoint evaluation results to InfluxDB and DuckDB.
+
+**Module**: `forge.lthn.ai/core/go-ml`
+**Licence**: EUPL-1.2
+**Language**: Go 1.25
+
+## Quick Start
+
+```go
+import "forge.lthn.ai/core/go-ml"
+
+// HTTP backend (Ollama, LM Studio, any OpenAI-compatible endpoint)
+backend := ml.NewHTTPBackend("http://localhost:11434", "qwen3:8b")
+resp, err := backend.Generate(ctx, "Hello", ml.GenOpts{MaxTokens: 256})
+
+// Scoring engine
+engine := ml.NewEngine(backend, ml.Options{Suites: "heuristic,semantic", Concurrency: 4})
+scores := engine.ScoreAll(responses)
+```
+
+## Documentation
+
+- [Architecture](docs/architecture.md) — backends, scoring engine, agent orchestrator, data pipeline
+- [Development Guide](docs/development.md) — building, testing, contributing
+- [Project History](docs/history.md) — completed phases and known limitations
+
+## Build & Test
+
+```bash
+go test ./...
+go test -race ./...
+go test -bench=. ./...
+go build ./...
+```
+
+## Licence
+
+European Union Public Licence 1.2 — see [LICENCE](LICENCE) for details.