chore: suppression des services obsolètes (sentinel, correlator, mod-reqin-log)

Remplacés par l'agent ja4ebpf (eBPF CO-RE). Nettoyage complet :

Supprimé :
- old/ (archive de l'ancienne architecture)
- services/correlator/ (logcorrelator Go)
- services/sentinel/ (capture pcap Go)
- services/mod-reqin-log/ (module Apache C)
- shared/go/ja4common/ (lib Go partagée — plus importée par ja4ebpf)
- tests/integration/platform/ (test correlator+sentinel+httpd)
- tests/integration/docker-compose.yml (compose ancienne archi)
- tests/integration/run-tests.sh (runner correlator/sentinel)
- tests/integration/verify_mvs.py (script orphelin)

Nettoyé :
- go.work : retire ./shared/go/ja4common
- services/ja4ebpf/go.mod : retire replace ja4common (jamais importé)
- services/ja4ebpf/Dockerfile* : retire les COPY ja4common inutiles
- Makefile : retire test-ja4common-python, test-integration*, targets obsolètes
- tests/integration/README.md : réécrit pour l'architecture ja4ebpf

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

tests/integration/platform/clickhouse-init.sh

@@ -1,48 +0,0 @@
-#!/bin/bash
-# =============================================================================
-# clickhouse-init.sh — Pre-process shared SQL files for integration testing
-#
-# Copies SQL from /initdb-src/ to /tmp, patches credentials, then executes.
-# =============================================================================
-set -e
-
-SRC_DIR="/initdb-src"
-TMP_DIR="/tmp/initdb-patched"
-USER_FILES="/var/lib/clickhouse/user_files"
-mkdir -p "$TMP_DIR"
-
-# Copier les CSV de référence dans user_files (dictionnaires navigateurs)
-for csv in "$SRC_DIR"/*.csv; do
-    [ -f "$csv" ] || continue
-    fname=$(basename "$csv")
-    if [ ! -f "$USER_FILES/$fname" ]; then
-        cp "$csv" "$USER_FILES/$fname"
-        echo "[init] CSV copié : $fname"
-    fi
-done
-
-for f in "$SRC_DIR"/*.sql; do
-    [ -f "$f" ] || continue
-    base=$(basename "$f")
-    echo "[init] Patching $base"
-    sed \
-        -e "s/USER 'admin'/USER 'default'/g" \
-        -e "s/PASSWORD 'CHANGE_ME'/PASSWORD ''/g" \
-        -e "s/PASSWORD 'ChangeMe'/PASSWORD ''/g" \
-        "$f" > "$TMP_DIR/$base"
-done
-
-for f in "$TMP_DIR"/*.sql; do
-    [ -f "$f" ] || continue
-    base=$(basename "$f")
-    echo "[init] Executing $base"
-    # 10_perf_indexes.sql uses ALTER TABLE ADD INDEX which may fail if index
-    # already exists — allow non-zero exit for migration/perf scripts
-    if [[ "$base" == 10_* ]]; then
-        clickhouse-client --multiquery < "$f" || echo "[init] WARNING: $base had errors (expected for duplicate indexes)"
-    else
-        clickhouse-client --multiquery < "$f"
-    fi
-done
-
-echo "[init] All SQL files executed successfully"