feat(backend): implement task creation and admin web

backend-api/internal/repository/sqlite/store.go

@@ -0,0 +1,17 @@
+package sqlite
+
+import (
+	"database/sql"
+	"errors"
+)
+
+type Store struct {
+	db *sql.DB
+}
+
+func New(db *sql.DB) (*Store, error) {
+	if db == nil {
+		return nil, errors.New("SQLite database is required")
+	}
+	return &Store{db: db}, nil
+}