Fix BASE_URL config loading, add tasks/projects; robust .env path resolution

- Config: try ENV_FILE, .env, ../.env for loading; trim trailing slash from BaseURL
- Log BASE_URL at server startup for verification
- .env.example: document BASE_URL
- Tasks, projects, tags, migrations and related API/handlers

Made-with: Cursor

internal/config/config.go

@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"log"
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
 )
@@ -21,7 +22,7 @@ type Config struct {
 }
 
 func Load() *Config {
-	loadEnvFile(".env")
+	loadEnvFromPath()
 
 	port := getEnv("SERVER_PORT", "8080")
 	jwtSecret := getEnv("JWT_SECRET", "dev-secret-change-me")
@@ -41,7 +42,7 @@ func Load() *Config {
 		RedisAddr:      os.Getenv("REDIS_ADDR"),
 		ServerPort:     port,
 		Env:            env,
-		BaseURL:        getEnv("BASE_URL", "http://localhost:"+port),
+		BaseURL:        strings.TrimSuffix(getEnv("BASE_URL", "http://localhost:"+port), "/"),
 		CORSOrigins:    corsOrigins,
 		RateLimitRPS:   rateRPS,
 		RateLimitBurst: rateBurst,
@@ -82,6 +83,24 @@ func parseInt(s string, def int) int {
 	return v
 }
 
+func loadEnvFromPath() {
+	if p := os.Getenv("ENV_FILE"); p != "" {
+		loadEnvFile(p)
+		return
+	}
+	cwd, _ := os.Getwd()
+	for _, p := range []string{".env", "../.env"} {
+		full := filepath.Join(cwd, p)
+		if f, err := os.Open(full); err == nil {
+			f.Close()
+			loadEnvFile(full)
+			return
+		}
+	}
+	// Fallback: try current dir as-is (for relative paths)
+	loadEnvFile(".env")
+}
+
 func loadEnvFile(path string) {
 	f, err := os.Open(path)
 	if err != nil {