Add initial Go server skeleton with HTTP handlers, middleware, job runner, and stubs

internal/infra/sqlite/db/db.go

@@ -0,0 +1,15 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+// Open returns a connected DB instance. Caller should close.
+func Open(ctx context.Context, dsn string) (*sql.DB, error) {
+	db, err := sql.Open("sqlite", dsn)
+	if err != nil {
+		return nil, err
+	}
+	return db, nil
+}

internal/infra/sqlite/db/migrations.go

@@ -0,0 +1,44 @@
+package db
+
+import (
+	"context"
+	"database/sql"
+	"golang.org/x/crypto/bcrypt"
+	"log"
+)
+
+// MigrateAndSeed performs a very small migration set and seeds an admin user
+func MigrateAndSeed(ctx context.Context, db *sql.DB) error {
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	stmts := []string{
+		`CREATE TABLE IF NOT EXISTS users (id TEXT PRIMARY KEY, username TEXT NOT NULL UNIQUE, password_hash TEXT, role TEXT, created_at DATETIME DEFAULT CURRENT_TIMESTAMP);`,
+		`CREATE TABLE IF NOT EXISTS pools (name TEXT PRIMARY KEY, guid TEXT, health TEXT, capacity TEXT);`,
+		`CREATE TABLE IF NOT EXISTS jobs (id TEXT PRIMARY KEY, type TEXT, status TEXT, progress INTEGER DEFAULT 0, owner TEXT, created_at DATETIME DEFAULT CURRENT_TIMESTAMP, updated_at DATETIME);`,
+	}
+	for _, s := range stmts {
+		if _, err := tx.ExecContext(ctx, s); err != nil {
+			return err
+		}
+	}
+	// Seed a default admin user if not exists
+	var count int
+	if err := tx.QueryRowContext(ctx, `SELECT COUNT(1) FROM users WHERE username = 'admin'`).Scan(&count); err != nil {
+		log.Printf("seed check failed: %v", err)
+	}
+	if count == 0 {
+		// note: simple seeded password: admin (do not use in prod)
+		pwHash, _ := bcrypt.GenerateFromPassword([]byte("admin"), bcrypt.DefaultCost)
+		if _, err := tx.ExecContext(ctx, `INSERT INTO users (id, username, password_hash, role) VALUES (?, 'admin', ?, 'admin')`, "admin", string(pwHash)); err != nil {
+			return err
+		}
+	}
+	if err := tx.Commit(); err != nil {
+		return err
+	}
+	return nil
+}