docs: add TEST-NEEDS.md (CRG C)

Author: hyperpolymath

TEST-NEEDS.md

@@ -0,0 +1,28 @@
+# TEST-NEEDS.md — sdp-hkdf-deployment
+
+## CRG Grade: C — ACHIEVED 2026-04-04
+
+## Current Test State
+
+| Category | Count | Notes |
+|----------|-------|-------|
+| Test infrastructure | Present | `tests/` directory exists |
+| Test framework | Configured | Deployment validation framework |
+
+## What's Covered
+
+- [x] Test directory structure
+
+## Still Missing (for CRG B+)
+
+- [ ] SDP key derivation tests
+- [ ] HKDF integration tests
+- [ ] Deployment validation tests
+- [ ] Security property tests
+- [ ] Performance benchmarks
+
+## Run Tests
+
+```bash
+cd /var/mnt/eclipse/repos/sdp-hkdf-deployment && just test
+```