feat(consistency): rebuild authoritative intake IDs

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a023c0-a0a3-7c03-b395-5a0d2757214d

tests/test_intake.py

@@ -48,6 +48,17 @@ class TestIntakeCreateAndRead:
         assert body["lane"] == "green"
         assert body["outcome"] is None
 
+    async def test_create_preserves_explicit_authoritative_id(self, client):
+        await _create_domain(client)
+        topic = await _create_topic(client)
+        expected = "11111111-1111-4111-8111-111111111111"
+        r = await client.post(
+            "/intakes/",
+            json={"id": expected, "title": "file intake", "topic_id": topic["id"]},
+        )
+        assert r.status_code == 201
+        assert r.json()["id"] == expected
+
     async def test_get_unknown_intake_404s(self, client):
         r = await client.get("/intakes/00000000-0000-0000-0000-000000000000")
         assert r.status_code == 404

tests/test_routers_core.py

@@ -407,6 +407,17 @@ class TestTasks:
 # ---------------------------------------------------------------------------
 
 class TestDecisions:
+    async def test_create_preserves_explicit_authoritative_id(self, client):
+        await _create_domain(client)
+        topic = await _create_topic(client)
+        expected = "22222222-2222-4222-8222-222222222222"
+        r = await client.post(
+            "/decisions/",
+            json={"id": expected, "title": "File decision", "topic_id": topic["id"]},
+        )
+        assert r.status_code == 201
+        assert r.json()["id"] == expected
+
     async def test_create_and_resolve(self, client):
         await _create_domain(client)
         topic = await _create_topic(client)