stage-14: pytest test suite over the worker lines

38 tests covering the pure worker-line logic: Classifyline rules, Routeline
TLP/country/incident-type gates, Sealine seal/unseal round-trip, Proofline
confidence scoring, Mapline CVEResolver escalation, Trainline dataset
well-posedness (the v1/v3 input-signal bugs are now regression-guarded), and
the Scoutline feed parsers. pytest added as a dev extra.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/conftest.py

@@ -0,0 +1,40 @@
+"""Shared test fixtures — Case builders for the worker-line tests."""
+
+from __future__ import annotations
+
+from datetime import datetime, timedelta, timezone
+from typing import Optional
+
+import pytest
+
+from psyc.models import Case, Classification, IncidentType, Observables, Severity, TLP
+
+
+def make_case(
+    feed: str = "urlhaus",
+    incident_type: Optional[IncidentType] = None,
+    severity: Optional[Severity] = None,
+    tlp: TLP = TLP.AMBER,
+    country: str = "",
+    age_days: int = 1,
+    **observables: list,
+) -> Case:
+    """A Case with controllable feed, classification, age, and observables."""
+    case = Case(
+        case_id=f"TEST-{feed}-{age_days}",
+        summary=f"test case from {feed}",
+        source_type="abuse_feed",
+        observed_at=datetime.now(timezone.utc) - timedelta(days=age_days),
+        observables=Observables(**observables),
+        classification=Classification(incident_type=incident_type, severity=severity, tlp=tlp),
+    )
+    case.source_metadata["feed"] = feed
+    case.victim.country = country
+    return case
+
+
+@pytest.fixture
+def urlhaus_case() -> Case:
+    c = make_case(feed="urlhaus", urls=["http://1.2.3.4/x"], domains=["1.2.3.4"], ips=["1.2.3.4"])
+    c.source_metadata["url_status"] = "online"
+    return c