fix(ja4ebpf): split bpf2go generate into Ja4Tc + Ja4Ssl, fix RPM systemd-rpm-macros

- Use two separate //go:generate directives (Ja4Tc for tc_capture.c, Ja4Ssl
  for uprobe_ssl.c) to avoid duplicate LICENSE symbol and multi-file clang issue
- Update loader.go to hold tcObjs/sslObjs separately with correct field names:
  UprobeSslSetFd, UprobeSslReadEntry, UretprobeSslReadExit,
  KprobeAccept4Entry, KretprobeAccept4Exit
- Add systemd-rpm-macros to all three RPM build stages (el8/el9/el10)
  so that %{_unitdir} macro resolves correctly
- RPMs now build successfully for el8, el9, el10

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

tests/integration/nginx-varnish/platform/ja4ebpf.yml

@@ -0,0 +1,30 @@
+# Configuration ja4ebpf — stack nginx + varnish
+# TLS terminé par nginx → uprobe sur libssl.so.3 (liée par nginx).
+# Varnish reçoit le trafic HTTP cleartext : pas de SSL_read côté varnish.
+
+interface: eth0
+
+ssl_probes:
+  # nginx lie libssl.so.3 pour la terminaison TLS.
+  # L'uprobe SSL_read capture les données HTTP/1.1 et HTTP/2
+  # déchiffrées juste avant que nginx les traite.
+  - executable: /usr/lib64/libssl.so.3
+    symbol: SSL_read
+
+clickhouse:
+  addr: "clickhouse:9000"
+  database: "ja4_logs"
+  table: "http_logs_raw"
+  username: "default"
+  password: ""
+  tls: false
+  batch_size: 100
+  flush_every: "1s"
+
+timeouts:
+  session_expiry: "500ms"
+  slowloris: "10s"
+
+log:
+  level: "info"
+  format: "json"