chore: add [test] extra and make test target

`pip install agentruntimecontrolprotocol[test,all]` now installs
pytest, pytest-cov, and the property/integration test deps (hypothesis,
dirty-equals, aiohttp, starlette, opentelemetry-sdk) needed to run the
full suite without uv. `make test` runs the standard incantation:
`pytest --cov --cov-branch --cov-report=xml`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: nficano

Makefile

@@ -1,4 +1,4 @@
-.PHONY: diagrams build clean publish publish-test
+.PHONY: diagrams build clean publish test
 
 DIAGRAMS := arch-overview session-lifecycle job-lifecycle capability-negotiation heartbeat-ack result-chunk-progress
 DIAGRAM_DIR := docs/diagrams
@@ -23,3 +23,10 @@ build: clean
 # rc file. Run `make build` first or this target will fail.
 publish: build
 	uv publish
+
+# Run the test suite with coverage. Equivalent to:
+#   pip install -e .[test,all]
+#   pytest --cov --cov-branch --cov-report=xml
+# but uses `uv run` so the lockfile is honored.
+test:
+	uv run pytest --cov --cov-branch --cov-report=xml

pyproject.toml

@@ -36,6 +36,22 @@ otel = [
 ]
 # JWKS fetching for `JWTVerifier` over HTTPS.
 jwks = ["httpx>=0.28.1"]
+# `pip install agentruntimecontrolprotocol[test,all]` — enough to run
+# `pytest --cov --cov-branch --cov-report=xml` against the full suite.
+# Pair with `[all]` so the runtime/jwks deps the integration tests reach
+# for are present.
+test = [
+    "pytest>=9.0.3",
+    "pytest-cov>=7.1.0",
+    "pytest-asyncio>=1.3.0",
+    "pytest-randomly>=4.1.0",
+    "pytest-timeout>=2.4.0",
+    "hypothesis>=6.152.9",
+    "dirty-equals>=0.11",
+    "aiohttp>=3.13.5",
+    "starlette>=1.0.1",
+    "opentelemetry-sdk>=1.42.1,<2",
+]
 # Everything — pulls in runtime + otel + jwks.
 all = [
     "aiosqlite>=0.22.1",