feat(phase-37): timer pause/resume + professional reporting engine

Pause/Resume timer:
- Add paused_at, red_paused_seconds, blue_paused_seconds fields to Test model
- Add pause_timer/resume_timer workflow functions with accumulated pause tracking
- Auto-resume on phase submit; subtract paused time from worklog duration
- Add POST /tests/{id}/pause-timer and resume-timer endpoints
- Update LiveTimer component with pause/resume button and paused visual state
- Wire pause/resume mutations through TestDetailPage and TestDetailHeader

Professional Reporting Engine - Fase 2:
- Add ReportEngine service with Jinja2 HTML rendering, WeasyPrint PDF, and docxtpl DOCX
- Add corporate CSS stylesheet with cover page, data tables, stats grid, findings
- Create purple_campaign, coverage_report, and executive_summary HTML templates
- Add report_generation_service collecting domain data for each report type
- Add professional_reports router: GET /reports/generate/purple-campaign/{id}, coverage-summary, executive-summary
- Add analytics router with flat JSON endpoints for PowerBI: /coverage, /tests, /trends, /operators
- Add advanced_metrics router: /coverage-by-tactic, /never-tested, /avg-validation-time, /detection-rate-trend
- Add weasyprint and docxtpl to requirements.txt
- Add REPORT_TEMPLATES_DIR, REPORT_OUTPUT_DIR, COMPANY_NAME, COMPANY_LOGO_PATH to config

frontend/src/components/test-detail/TestDetailHeader.tsx

@@ -53,6 +53,9 @@ interface TestDetailHeaderProps {
   onSubmitBlue: () => void;
   onOpenValidateModal: (side: "red" | "blue") => void;
   onReopen: () => void;
+  onPauseTimer: () => void;
+  onResumeTimer: () => void;
+  isTogglingTimer: boolean;
 }
 
 // ── Component ──────────────────────────────────────────────────────
@@ -66,6 +69,9 @@ export default function TestDetailHeader({
   onSubmitBlue,
   onOpenValidateModal,
   onReopen,
+  onPauseTimer,
+  onResumeTimer,
+  isTogglingTimer,
 }: TestDetailHeaderProps) {
   const role = user?.role ?? "";
   const currentIdx = STATE_INDEX[test.state];
@@ -238,13 +244,23 @@ export default function TestDetailHeader({
 
   // ── Live timer ───────────────────────────────────────────────────
 
+  const canControlTimer =
+    (test.state === "red_executing" && (role === "red_tech" || role === "admin")) ||
+    (test.state === "blue_evaluating" && (role === "blue_tech" || role === "admin"));
+
   const renderLiveTimer = () => {
     if (test.state === "red_executing" && test.red_started_at) {
       return (
         <LiveTimer
           startedAt={test.red_started_at}
+          pausedAt={test.paused_at}
+          pausedSeconds={test.red_paused_seconds}
           label="Red Team Timer"
           variant="red"
+          onPause={onPauseTimer}
+          onResume={onResumeTimer}
+          canControl={canControlTimer}
+          isToggling={isTogglingTimer}
         />
       );
     }
@@ -252,8 +268,14 @@ export default function TestDetailHeader({
       return (
         <LiveTimer
           startedAt={test.blue_started_at}
+          pausedAt={test.paused_at}
+          pausedSeconds={test.blue_paused_seconds}
           label="Blue Team Timer"
           variant="blue"
+          onPause={onPauseTimer}
+          onResume={onResumeTimer}
+          canControl={canControlTimer}
+          isToggling={isTogglingTimer}
         />
       );
     }