Finish KG-WP-0003: stream completeness and live qonto observation

Classify evidence as load-bearing or attributive, draft the emission-cadence
declaration for Taxonomy, treat silence as a stream finding, keep completeness
separate from record richness, forbid immune memory as a state plane, and make
containment proposals reconstructable to their origin. Observe real
qonto-assistant audit events; deny-class completeness stays unknown until the
source publishes a heartbeat.

Assistant: grok
Assistant-Session: 01a05ef1-9e5a-70f2-b0ff-0b05d6b38ae9

tests/test_effector_origin.py

@@ -0,0 +1,39 @@
+from kings_guard.contracts import StreamCompleteness
+
+from helpers import load_pilot, observation_from_fixture
+from kings_guard.posture import PostureEvaluator
+
+
+def test_effector_requests_carry_origin_and_do_not_widen_authority() -> None:
+    fixture = load_pilot()
+    observation = observation_from_fixture(fixture)
+    evaluation = PostureEvaluator().evaluate(fixture.genome, observation)
+    signal = evaluation.signals[0]
+
+    assert signal.effector_requests
+    for request in signal.effector_requests:
+        assert request.originating_observation_id == observation.observation_id
+        assert request.originating_signal_id == signal.signal_id
+        assert request.stream_completeness is StreamCompleteness.UNKNOWN
+        assert request.authority_boundary in {"advisory_only", "metadata_only"}
+        assert request.restrictive_direction in {
+            "reduce_authority",
+            "require_step_up",
+            "request_containment",
+            "none",
+        }
+
+    assert signal.effector_requests[0].restrictive_direction == "reduce_authority"
+    assert signal.effector_requests[1].restrictive_direction == "none"
+    assert signal.metadata["originating_observation_id"] == observation.observation_id
+
+
+def test_adjacent_boundary_states_receiving_side_origin_expectation() -> None:
+    from pathlib import Path
+
+    text = (Path(__file__).resolve().parents[1] / "docs" / "AdjacentSystemBoundary.md").read_text(
+        encoding="utf-8"
+    )
+    assert "originating observation" in text
+    assert "decision record" in text
+    assert "does not widen authority" in text