docs: deprioritize Frostwall Protocol

Reasoning:
- No active DDoS attacks experienced
- Email unblocked via Billing VPS (clean IP)
- Breezehost provides baseline protection
- CosmicGuard available if attacks occur
- Complex infrastructure for theoretical problem

Frostwall remains documented for future if needed.
Not worth 3-4 hours of SSH work right now.

Session: Chronicler #30

docs/core/tasks.md

@@ -362,10 +362,10 @@ Complete Vaultwarden setup: SSH key + organization for shared credentials with M
 
 ---
 
-### 7. The Frostwall Protocol — GRE Tunnel Security Architecture ⚠️ TOP PRIORITY
+### 7. The Frostwall Protocol — GRE Tunnel Security Architecture
 **Time:** 3-4 hours  
-**Status:** REBUILD PENDING — ELEVATED TO TOP PRIORITY (March 10, 2026)  
-**Priority:** CRITICAL — blocks email, which is now urgent  
+**Status:** DEPRIORITIZED — March 14, 2026  
+**Priority:** LOW — no active DDoS problem, email unblocked via Billing VPS  
 **Documentation:** `docs/tasks/frostwall-protocol/`
 
 Custom DDoS protection using GRE tunnels from Command Center to TX1/NC1. Hides real IPs, protects email reputation.