docs consolidation work

docs/modules/notify/simulations/index.ndjson

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+{"rule_id":"RULE-INCIDENT","tenant_id":"tenant-123","simulation_report":"sample-simulation-report.json","status":"passed"}

docs/modules/notify/simulations/sample-rule-report.json

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+{
+  "rule_id": "sample-rule",
+  "simulation_id": "sim-2025-12-04-001",
+  "executed_at": "2025-12-04T00:00:00Z",
+  "tenant_id": "test-tenant",
+  "fixtures_used": [
+    "docs/notifications/fixtures/rendering/tmpl-incident-start.email.en-US.json"
+  ],
+  "channels_tested": ["email", "slack"],
+  "results": {
+    "events_processed": 10,
+    "deliveries_simulated": 20,
+    "delivery_success": 20,
+    "delivery_failure": 0,
+    "quota_blocked": 0,
+    "redaction_applied": true
+  },
+  "determinism_check": {
+    "hash_algorithm": "blake3-256",
+    "output_digest": "0000000000000000000000000000000000000000000000000000000000000000",
+    "verified": true
+  },
+  "approval_required": true,
+  "approval_status": "pending",
+  "evidence_links": [
+    "docs/notifications/fixtures/rendering/index.ndjson"
+  ]
+}

docs/modules/notify/simulations/sample-simulation-report.json

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+{
+  "rule_id": "RULE-INCIDENT",
+  "tenant_id": "tenant-123",
+  "fixtures_version": "v1",
+  "result": "passed",
+  "evidence": [
+    {
+      "event_id": "evt-1",
+      "decision": "send",
+      "channel": "email"
+    }
+  ]
+}