feat(test): add test-schema target and SCHEMA_QUICK=1 mode for schemathesis

- Add dedicated test-schema Makefile target (xdist logical, 600s timeout,
  -m fuzz) so schemathesis runs separately from test-fuzz, which was
  spinning up competing uvicorn workers per xdist process
- Exclude all test_schemathesis*.py files from FUZZ_FLAGS via --ignore
- Add schema to _ALL_SUITES between api and fuzz
- Add SCHEMA_QUICK env var (default 0): caps every max_examples to 100
  across all four schemathesis files (4520 -> 600 total examples)
- Fix pre-push hook: use .311 venv and delegate to make test-all FAIL_FAST=0
  instead of hand-rolling five separate pytest invocations

tests/api/test_schemathesis.py

@@ -40,6 +40,7 @@ def _free_port() -> int:
 LIVE_PORT = _free_port()
 LIVE_SERVER_URL = f"http://127.0.0.1:{LIVE_PORT}"
 TEST_SECRET = "test-secret-for-automated-fuzzing"
+_QUICK = os.getenv("SCHEMA_QUICK") == "1"
 
 import decnet.web.auth
 decnet.web.auth.SECRET_KEY = TEST_SECRET
@@ -144,7 +145,7 @@ schema = st.openapi.from_url(f"{LIVE_SERVER_URL}/openapi.json")
 @pytest.mark.fuzz
 @st.pytest.parametrize(api=schema)
 @settings(
-    max_examples=3000,
+    max_examples=100 if _QUICK else 3000,
     deadline=None,
     verbosity=Verbosity.debug,
     suppress_health_check=[
@@ -161,7 +162,7 @@ def test_schema_compliance(case):
 @pytest.mark.fuzz
 @st.pytest.parametrize(api=schema)
 @settings(
-    max_examples=500,
+    max_examples=100 if _QUICK else 500,
     deadline=None,
     verbosity=Verbosity.normal,
     suppress_health_check=[

tests/api/test_schemathesis_agent.py

@@ -18,9 +18,12 @@ from schemathesis.specs.openapi.checks import (
     response_headers_conformance,
     response_schema_conformance,
 )
+import os
 from hypothesis import settings, HealthCheck
 
 from decnet.agent import app as _agent_app_mod
+
+_QUICK = os.getenv("SCHEMA_QUICK") == "1"
 from decnet.agent import executor as _exec
 from decnet.agent import heartbeat as _heartbeat
 
@@ -87,7 +90,7 @@ CHECKS = (
 @pytest.mark.fuzz
 @SCHEMA.parametrize()
 @settings(
-    max_examples=300,
+    max_examples=100 if _QUICK else 300,
     deadline=None,
     suppress_health_check=[
         HealthCheck.filter_too_much,

tests/api/test_schemathesis_swarm.py

@@ -17,6 +17,8 @@ os.environ.setdefault("DECNET_JWT_SECRET", "schemathesis-swarm-secret-32chars-mi
 
 import pytest
 import schemathesis as st
+
+_QUICK = os.getenv("SCHEMA_QUICK") == "1"
 from schemathesis.checks import not_a_server_error
 from schemathesis.specs.openapi.checks import (
     status_code_conformance,
@@ -54,7 +56,7 @@ CHECKS = (
 @pytest.mark.fuzz
 @SCHEMA.parametrize()
 @settings(
-    max_examples=200,
+    max_examples=100 if _QUICK else 200,
     deadline=None,
     suppress_health_check=[
         HealthCheck.filter_too_much,

tests/api/test_schemathesis_ttp.py

@@ -24,7 +24,10 @@ Routes covered (all decorated ``tags=["TTP Tagging"]``):
 """
 from __future__ import annotations
 
+import os
 import pytest
+
+_QUICK = os.getenv("SCHEMA_QUICK") == "1"
 import schemathesis as st
 from hypothesis import HealthCheck, Verbosity, settings
 
@@ -46,7 +49,7 @@ TTP_SCHEMA = st.openapi.from_url(
 @pytest.mark.fuzz
 @TTP_SCHEMA.parametrize()
 @settings(
-    max_examples=400,
+    max_examples=100 if _QUICK else 400,
     deadline=None,
     verbosity=Verbosity.normal,
     suppress_health_check=[
@@ -63,7 +66,7 @@ def test_ttp_schema_compliance(case):
 @pytest.mark.fuzz
 @TTP_SCHEMA.parametrize()
 @settings(
-    max_examples=120,
+    max_examples=100 if _QUICK else 120,
     deadline=None,
     verbosity=Verbosity.normal,
     suppress_health_check=[