refactor(services): rename Go services, remove -go suffix

mana-search-go → mana-search
mana-notify-go → mana-notify
mana-crawler-go → mana-crawler
mana-api-gateway-go → mana-api-gateway

Legacy NestJS versions are deleted, suffix no longer needed.
Updated all references in docker-compose, CLAUDE.md, package.json,
Forgejo workflows, and service package.json files.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

services/mana-crawler/cmd/server/main.go

@@ -0,0 +1,102 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/manacore/mana-crawler/internal/config"
+	"github.com/manacore/mana-crawler/internal/crawler"
+	"github.com/manacore/mana-crawler/internal/db"
+	"github.com/manacore/mana-crawler/internal/handler"
+	"github.com/manacore/mana-crawler/internal/robots"
+	"github.com/rs/cors"
+)
+
+func main() {
+	slog.SetDefault(slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		Level: slog.LevelInfo,
+	})))
+
+	cfg := config.Load()
+	ctx := context.Background()
+
+	// Database
+	database, err := db.New(ctx, cfg.DatabaseURL)
+	if err != nil {
+		slog.Error("database connection failed", "error", err)
+		os.Exit(1)
+	}
+	defer database.Close()
+
+	if err := database.Migrate(ctx); err != nil {
+		slog.Error("migration failed", "error", err)
+		os.Exit(1)
+	}
+
+	// Robots checker
+	robotsChecker := robots.NewChecker(cfg.UserAgent)
+
+	// Crawler engine
+	crawlerEngine := crawler.New(
+		database.Pool,
+		robotsChecker,
+		cfg.UserAgent,
+		cfg.Concurrency,
+		time.Duration(cfg.Timeout)*time.Millisecond,
+	)
+
+	// Handler
+	h := handler.NewHandler(database.Pool, crawlerEngine)
+
+	// Routes
+	mux := http.NewServeMux()
+
+	// Health & Metrics
+	mux.HandleFunc("GET /health", h.Health)
+	mux.HandleFunc("GET /metrics", h.Metrics)
+
+	// Crawl API
+	mux.HandleFunc("POST /api/v1/crawl", h.StartCrawl)
+	mux.HandleFunc("GET /api/v1/crawl", h.ListJobs)
+	mux.HandleFunc("GET /api/v1/crawl/{jobId}", h.GetJob)
+	mux.HandleFunc("GET /api/v1/crawl/{jobId}/results", h.GetJobResults)
+	mux.HandleFunc("DELETE /api/v1/crawl/{jobId}", h.CancelJob)
+
+	// CORS
+	c := cors.New(cors.Options{
+		AllowedOrigins:   cfg.CORSOrigins,
+		AllowedMethods:   []string{"GET", "POST", "DELETE", "OPTIONS"},
+		AllowedHeaders:   []string{"Authorization", "Content-Type"},
+		AllowCredentials: true,
+	})
+
+	server := &http.Server{
+		Addr:         fmt.Sprintf(":%d", cfg.Port),
+		Handler:      c.Handler(mux),
+		ReadTimeout:  30 * time.Second,
+		WriteTimeout: 120 * time.Second,
+		IdleTimeout:  120 * time.Second,
+	}
+
+	go func() {
+		sigCh := make(chan os.Signal, 1)
+		signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
+		<-sigCh
+		slog.Info("shutting down...")
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+		server.Shutdown(ctx)
+	}()
+
+	slog.Info("mana-crawler starting", "port", cfg.Port, "concurrency", cfg.Concurrency)
+	if err := server.ListenAndServe(); err != http.ErrServerClosed {
+		slog.Error("server error", "error", err)
+		os.Exit(1)
+	}
+}