fix: ASN dictionary pipeline + verbose bot-detector logging

- Fix dict_iplocate_asn: remove non-existent org/domain columns (4→4 cols)
- Add CSV header to iplocate-ip-to-asn.csv (CSVWithNames format)
- Replace org/domain dictGet calls with empty string literals in MV
- Full 714K CIDR stub for complete ASN resolution in tests
- Add header generation to generate_asn_data.py
- Verbose bot-detector stdout: data summary, triage breakdown, model
  training details, scoring stats, browser classification, boxed results
- Fix IPv6 filter in traffic seeder (_ips_from_cidrs)

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

tests/integration/traffic-gen/seed_clickhouse.py

@@ -517,12 +517,14 @@ def _gen_ips_from_prefixes(prefixes, n, rng):
 
 
 def _ips_from_cidrs(cidrs, n, rng):
-    """Generate *n* unique IPs from a list of CIDR strings."""
+    """Generate *n* unique IPv4 IPs from a list of CIDR strings."""
     networks = []
     single_ips = []
     for c in cidrs:
         try:
             net = ipaddress.ip_network(c, strict=False)
+            if net.version != 4:
+                continue
             if net.prefixlen == 32:
                 single_ips.append(str(net.network_address))
             elif net.num_addresses > 2: