Merge pull request '[RegulatoryObligation] new_node: Mandatory sanctions screening for cross-border retail remittances' (#1) from curator/reg-cbn-2026-001-20260423-175512 into main

proposals/2026-04-23/reg-cbn-2026-001-new_node/down.cypher

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+// rollback :: new_node :: urn:cab:compliance:l1:obligation/reg-cbn-2026-001
+MATCH (n:RegulatoryObligation {urn: 'urn:cab:compliance:l1:obligation/reg-cbn-2026-001'}) DETACH DELETE n;

proposals/2026-04-23/reg-cbn-2026-001-new_node/provenance.json

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+{
+  "kind": "new_node",
+  "target_layer": "L1",
+  "target_label": "RegulatoryObligation",
+  "target_urn": "urn:cab:compliance:l1:obligation/reg-cbn-2026-001",
+  "source_document_id": "5e04f744-f321-48aa-9ba7-006f73614aeb",
+  "source_chunk_ids": [
+    "a20493a0-1c22-4e83-9cfe-9633e1d39931",
+    "90b2b23c-8030-448b-933f-18518655c3fe"
+  ],
+  "source_episode_ids": [],
+  "confidence": 0.613,
+  "confidence_signals": {
+    "frequency": 0.5,
+    "cross_doc": 0.0,
+    "schema_match": 1.0,
+    "llm_self_rate": 0.95
+  },
+  "proposed_by": "curator-regobligation-v1",
+  "prompt_version": "regobligation-v1",
+  "proposed_at": "2026-04-23T17:55:12.807678Z"
+}

proposals/2026-04-23/reg-cbn-2026-001-new_node/summary.md

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+# [RegulatoryObligation] Mandatory sanctions screening for cross-border retail remittances
+
+- **Kind:** `new_node`
+- **URN:** `urn:cab:compliance:l1:obligation/reg-cbn-2026-001`
+- **Confidence:** 0.613
+- **Source document:** `smoke-08.md` (id `5e04f744-f321-48aa-9ba7-006f73614aeb`)
+
+## Confidence breakdown
+- frequency: 0.5
+- cross_doc: 0.0
+- schema_match: 1.0
+- llm_self_rate: 0.95
+
+## Classifier output
+- Issuer: `Central Bank of Nigeria`
+- Jurisdiction: `NG`
+- Document type: `circular`
+- Self-confidence: 0.99
+
+## Proposed properties
+- `id`: 'REG-CBN-2026-001'
+- `name`: 'Mandatory sanctions screening for cross-border retail remittances'
+- `business_purpose`: 'Licensed institutions must perform real-time sanctions screening against consolidated OFAC, UN, EU, and UK sanctions lists for all inbound and outbound cross-border retail remittances exceeding USD 1,000 or naira equivalent. This ensures compliance with international sanctions and prevents illicit financial flows. Screening evidence must be retained for seven years and produced to the CBN on request within 48 hours.'
+- `jurisdiction`: 'NG'
+- `regulator`: 'CBN'
+- `effective_date`: '2026-05-01'
+- `source_doc`: 'CBN-2026-CIR-061'
+- `status`: 'upcoming'
+
+## Allowed edge shapes (from spec)
+- `(CorridorComplianceRule)-[:GOVERNED_BY]-` (in) — Corridor compliance rules whose jurisdiction matches the obligation should reference it. *(informational)*
+
+## Supporting chunks
+- chunk 0
+- chunk 1

proposals/2026-04-23/reg-cbn-2026-001-new_node/targets.json

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+{
+  "layers": [
+    "L1"
+  ],
+  "urns": [
+    "urn:cab:compliance:l1:obligation/reg-cbn-2026-001"
+  ]
+}

proposals/2026-04-23/reg-cbn-2026-001-new_node/up.cypher

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+// new_node :: RegulatoryObligation :: urn:cab:compliance:l1:obligation/reg-cbn-2026-001
+MERGE (n:CompassEntity:RegulatoryObligation {urn: 'urn:cab:compliance:l1:obligation/reg-cbn-2026-001'})
+  ON CREATE SET
+  n.id = 'REG-CBN-2026-001',
+  n.created_at = datetime(),
+  n.updated_at = datetime()
+SET
+  n.name = 'Mandatory sanctions screening for cross-border retail remittances',
+  n.business_purpose = 'Licensed institutions must perform real-time sanctions screening against consolidated OFAC, UN, EU, and UK sanctions lists for all inbound and outbound cross-border retail remittances exceeding USD 1,000 or naira equivalent. This ensures compliance with international sanctions and prevents illicit financial flows. Screening evidence must be retained for seven years and produced to the CBN on request within 48 hours.',
+  n.jurisdiction = 'NG',
+  n.regulator = 'CBN',
+  n.effective_date = date('2026-05-01'),
+  n.source_doc = 'CBN-2026-CIR-061',
+  n.status = 'upcoming',
+  n.updated_at = datetime();