Remove legacy AttackTracer repo content

docs/ocsentinel-n8n-contract.md

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+# OfficeCom Sentinel n8n Contract
+
+## Request
+
+- method: `POST`
+- content type: `application/json`
+- example webhook: `https://n8n.example.com/webhook/ocsentinel-ingest`
+
+## Required Payload Intent
+
+The endpoint should send one signed JSON document per scan run containing:
+
+- device identity
+- client version
+- scan metadata
+- attack findings
+- CVE correlation summary
+- raw status fields needed for downstream NinjaOne updates
+
+## Expected Downstream Work
+
+n8n is responsible for:
+
+- ingest validation
+- storage in the central backend
+- organization-wide aggregation
+- NinjaOne organization API updates