Fix daily firewall report caching stale aggregated data

[Copilot]

Daily Firewall Report was showing the same "413 blocked calls" count every day. Step 0 cached "Aggregated blocked domains data" in repo-memory and reused it when no new runs were found, producing deterministic stale statistics.

Changes

• Removed instruction to cache aggregated statistics (blocked/allowed counts, domain lists)
• Only cache run IDs to track what's been processed
• Always re-fetch fresh data from audit tool for accurate counts

Before

3. Store the following in repo memory for the next run:
   - Last analysis timestamp
   - List of run IDs analyzed
   - Aggregated blocked domains data  ❌ stale data reused

After

3. Store the following in repo memory for the next run:
   - Last analysis timestamp
   - List of run IDs analyzed

**IMPORTANT**: Never cache or reuse aggregated statistics. Always compute fresh from the audit tool.

Original prompt

Daily Firewall Report agent is lying... just watching the numbers and it says 413 blocked calls every day. it's too deterministic. Fix it

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