feat: scaffold initial RSS reader project with Go backend and React frontend

internal/config/config.go

@@ -0,0 +1,67 @@
+package config
+
+import (
+	"os"
+	"strconv"
+)
+
+type Config struct {
+	Port                   string
+	DBPath                 string
+	AdminUsername          string
+	AdminPassword          string
+	JWTSecret              string
+	CrawlerIntervalMinutes int
+	CrawlerWorkers         int
+}
+
+func LoadConfig() *Config {
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8080"
+	}
+
+	dbPath := os.Getenv("DB_PATH")
+	if dbPath == "" {
+		dbPath = "./data/rsspipe.db"
+	}
+
+	adminUser := os.Getenv("ADMIN_USERNAME")
+	if adminUser == "" {
+		adminUser = "admin"
+	}
+
+	adminPass := os.Getenv("ADMIN_PASSWORD")
+	if adminPass == "" {
+		adminPass = "admin123456"
+	}
+
+	jwtSecret := os.Getenv("JWT_SECRET")
+	if jwtSecret == "" {
+		jwtSecret = "rsspipe-super-secret-jwt-key-2026"
+	}
+
+	intervalMin := 15
+	if intervalStr := os.Getenv("CRAWLER_INTERVAL_MINUTES"); intervalStr != "" {
+		if v, err := strconv.Atoi(intervalStr); err == nil && v > 0 {
+			intervalMin = v
+		}
+	}
+
+	workers := 10
+	if workerStr := os.Getenv("CRAWLER_WORKERS"); workerStr != "" {
+		if v, err := strconv.Atoi(workerStr); err == nil && v > 0 {
+			workers = v
+		}
+	}
+
+	return &Config{
+		Port:                   port,
+		DBPath:                 dbPath,
+		AdminUsername:          adminUser,
+		AdminPassword:          adminPass,
+		JWTSecret:              jwtSecret,
+		CrawlerIntervalMinutes: intervalMin,
+		CrawlerWorkers:         workers,
+	}
+}