feat: init sproutclaw-web — Go+Gin backend + React frontend

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/cmd/server/main.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+
+	"github.com/gin-gonic/gin"
+	"sproutclaw-web/internal/config"
+	"sproutclaw-web/internal/db"
+	"sproutclaw-web/internal/handlers"
+	"sproutclaw-web/internal/middleware"
+	"sproutclaw-web/internal/rpc"
+	"sproutclaw-web/internal/static"
+)
+
+func main() {
+	cfg := config.New()
+
+	log.Printf("[sproutclaw-web] port=%d agent-dir=%s", cfg.Port, cfg.AgentDir)
+
+	// Database (stores in agent data dir)
+	dataDir := filepath.Join(cfg.AgentDir, "data", "sproutclaw-web")
+	database, err := db.Init(dataDir)
+	if err != nil {
+		log.Fatalf("db init: %v", err)
+	}
+	defer database.Close()
+	log.Printf("[sproutclaw-web] db: %s", database.DbPath)
+
+	// pi CLI RPC client
+	piClient, err := rpc.NewClient(cfg.PiCmd, cfg.PiArgs, cfg.AgentDir, func(code int) {
+		if code != 0 {
+			log.Printf("[sproutclaw-web] pi CLI exited with code %d, shutting down", code)
+			os.Exit(1)
+		}
+		os.Exit(0)
+	})
+	if err != nil {
+		log.Fatalf("pi client: %v", err)
+	}
+	defer piClient.Stop()
+
+	// Gin router
+	gin.SetMode(gin.ReleaseMode)
+	r := gin.New()
+	r.Use(gin.Logger(), gin.Recovery())
+	r.Use(middleware.CORS())
+
+	// API routes
+	api := r.Group("/api")
+	handlers.RegisterChat(api, piClient)
+	handlers.RegisterSessions(api, cfg, database, piClient)
+	handlers.RegisterModels(api, cfg, piClient)
+	handlers.RegisterCommands(api, cfg)
+	handlers.RegisterWebuiConfig(api, database)
+	handlers.RegisterSettings(api, cfg, database, piClient)
+	handlers.RegisterExtensionUI(api, piClient)
+
+	// Static files (production: frontend/dist/)
+	static.Register(r, cfg.FrontendDist)
+
+	addr := fmt.Sprintf("0.0.0.0:%d", cfg.Port)
+	log.Printf("[sproutclaw-web] listening on http://localhost:%d", cfg.Port)
+	if err := r.Run(addr); err != nil {
+		log.Fatalf("server: %v", err)
+	}
+}