[bojemoi] feat(cve-campaign): add feedback loop to improve GBR with real pwn data

Commit `7028607`

feedback_loop.py: checks MSF DB (sessions/vulns) to label dispatches pwn=1 / miss=0, retrains GBR combining real data (×5 weight) + synthetic
cve_campaign_agent.py: add cve_campaign_dispatches table, record each (CVE, IP) at dispatch time for feedback loop consumption
Cron meta-68 08h00: runs daily after campaign agent (07h00)

Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com