feat(tests): realistic traffic seeder + IP diversity via mod_remoteip

Option A — X-Forwarded-For + mod_remoteip:
- httpd-integration.conf: load mod_remoteip, trust all Docker RFC-1918
  subnets (172/192.168/10). mod_reqin_log uses r->useragent_ip which
  mod_remoteip updates from XFF → each request logged with distinct src_ip
- generate_traffic.py: XFF always set (was 30% only); human scenarios
  use 91.121/78.41/90.x ranges, bot scenarios use 185.220/45.155/193.32;
  pool of 1168 human IPs and 180 bot IPs; default --requests 500

Option D — Direct ClickHouse seeder (seed_clickhouse.py, stdlib only):
- Inserts ~4000 rows into http_logs_raw triggering full MV chain:
    http_logs_raw → mv_http_logs → http_logs
                 → mv_agg_host_ip_ja4_1h → agg_host_ip_ja4_1h
  • 720 human sessions: IPs in OVH/SFR/Orange ASN ranges (16276/15557/3215)
    → dict_asn_reputation maps these to asn_label='human'
    → satisfies bot_detector human_baseline >= 500 threshold
  • 150 scanner sessions: datacenter IPs, attack paths (/.env, wp-login,
    SQLi, path traversal), scanner UAs, minimal TCP fingerprints
  • 100 known-bot sessions: IPs matching bot_ip.csv entries
  • 20 brute-force clusters: 20-50 POST /login per IP
  All TCP/TLS metadata is profile-realistic (window, MSS, TTL, JA4, JA3)

CSV stubs (mounted at /var/lib/clickhouse/user_files/):
- iplocate-ip-to-asn.csv: 13 CIDR→ASN mappings (OVH/SFR/Orange/Tor/Contabo)
- asn_reputation.csv: 13 ASN→label (8 'human', 3 'datacenter'/'hosting')
- bot_ip.csv: 14 known scanner/Tor IPs (Shodan, Censys, Tor exits)
- bot_ja4.csv: 5 bot JA4 fingerprints (curl, python-requests, masscan, zgrab)

run-tests.sh:
- Phase 4a: seeder runs before live traffic (ensures bot_detector baseline)
- Phase 4b: live traffic gen at 500 requests (up from 200)
- Phase 5f: new assertions — agg_host_ip_ja4_1h populated, ≥500 human
  rows in view_ai_features_1h, known-bot labels present
- Phase 7: verifies ml_all_scores populated (bot_detector ran a cycle)

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

tests/integration/platform/csv-stubs/bot_ja4.csv

@@ -0,0 +1,5 @@
+t13d030500_ffd59bab1b39_6e7f7df63e98,curl_scanner
+t13d020300_6b9b1b2c3d4e_ffd59bab1b39,python_requests_scanner
+t10d170000_0a1b2c3d4e5f_1b2c3d4e5f60,Masscan
+t12d050700_5a6b7c8d9e0f_1a2b3c4d5e6f,zgrab_scanner
+t13d010100_aabbccddeeff_0011223344aa,Headless_Chrome_Automation