feat: ja4-platform monorepo — 5 services unified, tests & RPM builds standardized

Services:
- ja4sentinel: TLS/JA4 fingerprint capture daemon (Go, libpcap)
- logcorrelator: JA4 log correlation engine (Go, ClickHouse)
- mod_reqin_log: Apache module (C, JSON request logging)
- bot_detector: ML bot detection pipeline (Python)
- dashboard: FastAPI/Streamlit analytics UI (Python)

Shared libraries:
- shared/go/ja4common: logger, config, shutdown, ipfilter (Go module)
- shared/python/ja4_common: ClickHouseClient, ClickHouseSettings (Python package)
- shared/clickhouse/: canonical SQL migrations (10 files)

Build & packaging:
- Unified 3-stage Dockerfile.package for Go RPMs (el8/el9/el10)
- go.work workspace linking sentinel, correlator, ja4common
- Makefile with test-all, build-all, rpm-* targets

Fixes applied:
- go.work: 1.21 → 1.24.6 (required by sentinel)
- correlator Dockerfiles: golang:1.21 → golang:1.24
- replace directives in go.mod for ja4common local path
- pyproject.toml: setuptools.backends → setuptools.build_meta
- Removed static libpcap linking (unavailable on Rocky 9)
- Fixed data races in output/writers_test.go (sync.Mutex + atomic.Int32)
- Rewrote corrupted test files (logger_test.go × 2)

Test coverage:
- correlator: 67.1% total (unixsocket 80.5%, config 91.7%, app 83.3%, multi 87.7%, stdout 100%)
- sentinel: all 10 packages pass (api, capture, config, fingerprint, ipfilter, logging, output, tlsparse)

Documentation:
- README.md + docs/ (architecture, development, 5 services, shared libs, DB schema & migrations)

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

services/mod-reqin-log/conf/mod_reqin_log.conf

@@ -0,0 +1,40 @@
+# mod_reqin_log example configuration
+# Load this configuration in your Apache httpd.conf or a separate included file
+
+# Load the module (adjust path as needed)
+LoadModule reqin_log_module modules/mod_reqin_log.so
+
+# Enable mod_reqin_log
+JsonSockLogEnabled On
+
+# Unix domain socket path for JSON log output
+# Important: if JsonSockLogEnabled is On and this directive is missing/empty,
+# Apache startup fails due to strict configuration validation.
+JsonSockLogSocket "/var/run/logcorrelator/http.socket"
+
+# HTTP headers to include in the JSON log
+# Warning: Be careful not to log sensitive headers like Authorization, Cookie, etc.
+JsonSockLogHeaders X-Request-Id X-Trace-Id User-Agent Referer X-Forwarded-For \
+                   Sec-CH-UA Sec-CH-UA-Mobile Sec-CH-UA-Platform \
+                   Sec-Fetch-Dest Sec-Fetch-Mode Sec-Fetch-Site \
+                   Accept Accept-Language Accept-Encoding Content-Type
+
+# Maximum number of headers to log (from the configured list)
+JsonSockLogMaxHeaders 25
+
+# Maximum length of each header value (longer values are truncated)
+JsonSockLogMaxHeaderValueLen 256
+
+# Minimum delay between reconnect attempts to the Unix socket (seconds)
+JsonSockLogReconnectInterval 10
+
+# Minimum delay between error messages to Apache error_log (seconds)
+JsonSockLogErrorReportInterval 10
+
+# Log level for module messages: DEBUG, INFO, WARNING, ERROR, EMERG (default: WARNING)
+# DEBUG: Log all messages including header skipping and buffer truncation
+# INFO: Log informational messages
+# WARNING: Log warnings (default)
+# ERROR: Log only errors
+# EMERG: Log only emergency messages
+JsonSockLogLevel WARNING