Add Reanimator format export support

Implement export to Reanimator format for asset tracking integration.

Features:
- New API endpoint: GET /api/export/reanimator
- Web UI button "Экспорт Reanimator" in Configuration tab
- Auto-detect CPU manufacturer (Intel/AMD/ARM/Ampere)
- Generate PCIe serial numbers if missing
- Merge GPUs and NetworkAdapters into pcie_devices
- Filter components without serial numbers
- RFC3339 timestamp format
- Full compliance with Reanimator specification

Changes:
- Add reanimator_models.go: data models for Reanimator format
- Add reanimator_converter.go: conversion functions
- Add reanimator_converter_test.go: unit tests
- Add reanimator_integration_test.go: integration tests
- Update handlers.go: add handleExportReanimator
- Update server.go: register /api/export/reanimator route
- Update index.html: add export button
- Update CLAUDE.md: document export behavior
- Add REANIMATOR_EXPORT.md: implementation summary

Tests: All tests passing (15+ new tests)
Format spec: example/docs/INTEGRATION_GUIDE.md

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

internal/server/handlers.go

@@ -601,6 +601,30 @@ func (s *Server) handleExportTXT(w http.ResponseWriter, r *http.Request) {
 	exp.ExportTXT(w)
 }
 
+func (s *Server) handleExportReanimator(w http.ResponseWriter, r *http.Request) {
+	result := s.GetResult()
+	if result == nil || result.Hardware == nil {
+		jsonError(w, "No hardware data available for export", http.StatusBadRequest)
+		return
+	}
+
+	reanimatorData, err := exporter.ConvertToReanimator(result)
+	if err != nil {
+		jsonError(w, fmt.Sprintf("Export failed: %v", err), http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%q", exportFilename(result, "reanimator.json")))
+
+	encoder := json.NewEncoder(w)
+	encoder.SetIndent("", "  ")
+	if err := encoder.Encode(reanimatorData); err != nil {
+		// Log error, but likely too late to send error response
+		return
+	}
+}
+
 func (s *Server) handleClear(w http.ResponseWriter, r *http.Request) {
 	s.SetResult(nil)
 	s.SetDetectedVendor("")

internal/server/server.go

@@ -68,6 +68,7 @@ func (s *Server) setupRoutes() {
 	s.mux.HandleFunc("GET /api/export/csv", s.handleExportCSV)
 	s.mux.HandleFunc("GET /api/export/json", s.handleExportJSON)
 	s.mux.HandleFunc("GET /api/export/txt", s.handleExportTXT)
+	s.mux.HandleFunc("GET /api/export/reanimator", s.handleExportReanimator)
 	s.mux.HandleFunc("DELETE /api/clear", s.handleClear)
 	s.mux.HandleFunc("POST /api/shutdown", s.handleShutdown)
 	s.mux.HandleFunc("POST /api/collect", s.handleCollectStart)