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>

old/services/sentinel/Dockerfile

@@ -0,0 +1,37 @@
+FROM golang:1.24-alpine AS builder
+
+RUN apk add --no-cache git make libpcap-dev gcc musl-dev linux-headers
+
+WORKDIR /build
+
+# Copy workspace and shared module first (better caching)
+COPY go.work go.work.sum* ./
+COPY shared/go/ja4common/ ./shared/go/ja4common/
+COPY services/sentinel/go.mod services/sentinel/go.sum* ./services/sentinel/
+COPY services/correlator/go.mod services/correlator/go.sum* ./services/correlator/
+
+WORKDIR /build/services/sentinel
+RUN go mod download || true
+
+COPY services/sentinel/ /build/services/sentinel/
+
+ARG VERSION=dev
+ARG BUILD_TIME=unknown
+ARG GIT_COMMIT=unknown
+
+RUN mkdir -p dist && \
+    CGO_ENABLED=1 GOOS=linux GOARCH=amd64 \
+    CGO_LDFLAGS="-Wl,-Bstatic -lpcap -Wl,-Bdynamic" \
+    go build -buildvcs=false \
+    -ldflags "-X main.Version=${VERSION} -X main.BuildTime=${BUILD_TIME} -X main.GitCommit=${GIT_COMMIT}" \
+    -o dist/sentinel ./cmd/ja4sentinel
+
+FROM alpine:latest
+RUN apk add --no-cache ca-certificates
+RUN addgroup -S sentinel && adduser -S sentinel -G sentinel
+RUN mkdir -p /var/lib/sentinel /var/run /etc/sentinel /var/log/sentinel
+COPY --from=builder /build/services/sentinel/dist/sentinel /usr/local/bin/sentinel
+RUN chown -R sentinel:sentinel /var/lib/sentinel /var/log/sentinel
+USER sentinel
+WORKDIR /var/lib/sentinel
+ENTRYPOINT ["/usr/local/bin/sentinel"]