docs: add Quickstart page and surface FastMCP in nav (#134)

End-to-end FastAPI walkthrough (install, bootstrap, run, what-you-get,
enabling more instruments). Also adds the existing FastMCP integration
page to the nav, where it was previously unreachable.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: lesnik512

docs/introduction/quickstart.md

@@ -0,0 +1,118 @@
+# Quickstart
+
+This walkthrough takes you from an empty project to a **FastAPI service with
+production instrumentation** — metrics, health checks, CORS, Swagger, and
+structured logging — wired up in a few lines. The same pattern applies to
+[Litestar](../integrations/litestar.md), [FastStream](../integrations/faststream.md),
+[FastMCP](../integrations/fastmcp.md), and
+[framework-free services](../integrations/free.md).
+
+## 1. Install
+
+Install `lite-bootstrap` with the FastAPI extras. `fastapi-all` pulls in every
+supported instrument:
+
+=== "uv"
+
+      ```bash
+      uv add lite-bootstrap[fastapi-all]
+      ```
+
+=== "pip"
+
+      ```bash
+      pip install lite-bootstrap[fastapi-all]
+      ```
+
+=== "poetry"
+
+      ```bash
+      poetry add lite-bootstrap[fastapi-all]
+      ```
+
+Want only some instruments? See the extras matrix in
+[Installation](installation.md).
+
+## 2. Bootstrap your application
+
+Create `main.py`:
+
+```python
+from fastapi import FastAPI
+from lite_bootstrap import FastAPIConfig, FastAPIBootstrapper
+
+config = FastAPIConfig(
+    service_name="my-service",
+    service_version="1.0.0",
+    service_environment="local",
+    prometheus_metrics_path="/metrics",
+    health_checks_enabled=True,
+    health_checks_path="/health",
+    cors_allowed_origins=["*"],
+    swagger_offline_docs=True,
+)
+
+app: FastAPI = FastAPIBootstrapper(config).bootstrap()
+
+
+@app.get("/")
+async def root() -> dict[str, str]:
+    return {"hello": "world"}
+```
+
+`bootstrap()` returns a ready `FastAPI` app with every configured instrument
+attached.
+
+## 3. Run it
+
+```bash
+uvicorn main:app --reload
+```
+
+## 4. What you get
+
+With the config above, your service now exposes:
+
+- **Metrics** at `/metrics` in Prometheus format — point your scraper at it.
+- **Health check** at `/health` — wire it to your orchestrator's readiness probe.
+- **Swagger UI** at `/docs` — with offline assets, so it renders without a CDN.
+- **CORS** headers for the configured origins.
+- **Structured logging** via `structlog` — enabled by default (opt out with
+  `logging_enabled=False`).
+
+## 5. Enable more
+
+Each instrument is opt-in: add its config field to turn it on. Unset (or empty)
+fields are skipped automatically, so you only pay for what you enable.
+
+```python
+config = FastAPIConfig(
+    service_name="my-service",
+    service_version="1.0.0",
+    service_environment="local",
+    # tracing — spans exported to your OTLP endpoint
+    opentelemetry_endpoint="http://localhost:4317",
+    # error reporting
+    sentry_dsn="https://examplePublicKey@o0.ingest.sentry.io/0",
+    # continuous profiling (needs the `pyroscope` extra)
+    pyroscope_endpoint="http://localhost:4040",
+)
+```
+
+To see exactly which instruments were enabled or skipped at startup, inspect the
+bootstrapper:
+
+```python
+bootstrapper = FastAPIBootstrapper(config)
+app = bootstrapper.bootstrap()
+
+print(bootstrapper.build_summary())          # human-readable summary
+for cls, reason in bootstrapper.skipped_instruments:
+    print(f"skipped {cls.__name__}: {reason}")
+```
+
+## Next steps
+
+- [Configuration](configuration.md) — every config field and per-instrument option.
+- [Integrations](../integrations/litestar.md) — Litestar, FastStream, FastMCP,
+  and framework-free services.

mkdocs.yml

@@ -5,12 +5,14 @@ docs_dir: docs
 edit_uri: edit/main/docs/
 nav:
   - Introduction:
+      - Quickstart: introduction/quickstart.md
       - Installation: introduction/installation.md
       - Configuration: introduction/configuration.md
   - Integrations:
       - Litestar: integrations/litestar.md
       - FastStream: integrations/faststream.md
       - FastAPI: integrations/fastapi.md
+      - FastMCP: integrations/fastmcp.md
       - Free bootstrapper: integrations/free.md
 theme:
   name: material