Merge branch 'feature/ops-02-zentrale-statusseite' into feature/qa-09-barrierefreiheits-audit

# Conflicts:
#	DEVLOG.md
#	scripts/reset-test-env.sh

cmd/statuspage-devserver/main.go

@@ -0,0 +1,66 @@
+// statuspage-devserver stellt das OPS-02-Backend (internal/statuspage) fuer
+// die Next.js-Statusseite bereit und startet den periodischen Poller.
+// Getrennt von cmd/core aus demselben Grund wie die anderen *-devserver.
+package main
+
+import (
+	"context"
+	"log"
+	"net/http"
+	"os"
+	"strconv"
+	"time"
+
+	"gitea.perlbach24.de/scripte/nexarch/internal/db"
+	"gitea.perlbach24.de/scripte/nexarch/internal/statuspage"
+)
+
+func main() {
+	dsn := os.Getenv("NEXARCH_REGISTRY_DSN")
+	if dsn == "" {
+		log.Fatal("NEXARCH_REGISTRY_DSN nicht gesetzt")
+	}
+	addr := os.Getenv("NEXARCH_STATUSPAGE_LISTEN_ADDR")
+	if addr == "" {
+		addr = ":8084"
+	}
+	intervalSeconds := 10
+	if v := os.Getenv("NEXARCH_STATUSPAGE_POLL_INTERVAL_SECONDS"); v != "" {
+		if parsed, err := strconv.Atoi(v); err == nil {
+			intervalSeconds = parsed
+		}
+	}
+
+	ctx := context.Background()
+	pool, err := db.Connect(ctx, dsn)
+	if err != nil {
+		log.Fatalf("db: %v", err)
+	}
+	defer pool.Close()
+
+	store := statuspage.NewStore(pool)
+	checker := statuspage.NewHTTPChecker(2 * time.Second)
+	poller := statuspage.NewPoller(store, checker)
+	go poller.Run(ctx, time.Duration(intervalSeconds)*time.Second)
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/status/overview", withCORS(store.OverviewHandler))
+	mux.HandleFunc("/status/history", withCORS(store.HistoryHandler))
+	mux.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusOK) })
+
+	log.Printf("statuspage-devserver listening on %s (poll-intervall: %ds)", addr, intervalSeconds)
+	log.Fatal(http.ListenAndServe(addr, mux))
+}
+
+func withCORS(next http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+		w.Header().Set("Access-Control-Allow-Methods", "GET, OPTIONS")
+		w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
+		if r.Method == http.MethodOptions {
+			w.WriteHeader(http.StatusOK)
+			return
+		}
+		next(w, r)
+	}
+}