feat: nouvelles techniques de détection et page tactiques SOC

SQL:
- Ajout 5 colonnes d'agrégation (count_xff, count_unusual_ct,
  count_non_std_port, count_login_post, sec_ch_mobile_mismatch)
- Exposition de 5 features calculées dans view_ai_features_1h
- Migration ALTER TABLE pour déploiements existants

Bot-detector:
- 7 nouvelles features ML (has_xff, unusual_content_type_ratio,
  non_standard_port_ratio, login_post_concentration,
  sec_ch_mobile_mismatch, true_window_size, window_mss_ratio)
- Propagation campaign_id vers ml_all_scores (était toujours -1)
- Escalade campagne : HIGH→CRITICAL si cluster ≥5 membres

Dashboard:
- Page Tactiques SOC : brute-force, rotation JA4, récurrence,
  alertes temps réel — 4 KPIs + 4 panneaux + infobulles doc
- Ajout fmtDate() helper global
- Navigation sidebar mise à jour

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

services/dashboard/backend/routes/pages.py

@@ -71,3 +71,8 @@ async def ja4_detail_page(request: Request, fingerprint: str):
 @router.get("/cluster/{cid}")
 async def cluster_detail_page(request: Request, cid: int):
     return templates.TemplateResponse("cluster_detail.html", _ctx(request, "cluster_detail", cid=cid))
+
+
+@router.get("/tactics")
+async def tactics_page(request: Request):
+    return templates.TemplateResponse("tactics.html", _ctx(request, "tactics"))