fix: resolve CI test failures on Linux and Windows

- Fix TestMigrateCommand: Use correct sqlite3 driver name and file URI format
- Fix TestDaemonAutoImportAfterGitPull: Add Windows-specific delay for filesystem timestamp precision
- Fix TestSyncBranchPull_Success: Add Windows-specific delay for file I/O settling

Amp-Thread-ID: https://ampcode.com/threads/T-5abd1f2f-9607-4111-af9d-19df64362ac7
Co-authored-by: Amp <amp@ampcode.com>

cmd/bd/daemon_autoimport_test.go

@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"os"
 	"path/filepath"
+	"runtime"
 	"testing"
 	"time"
 
@@ -132,7 +133,13 @@ func TestDaemonAutoImportAfterGitPull(t *testing.T) {
 		runGitCmd(t, clone2Dir, "pull")
 		
 		// Wait for filesystem to settle after git operations
-		time.Sleep(50 * time.Millisecond)
+		// Windows has lower filesystem timestamp precision (typically 100ms)
+		// so we need a longer delay to ensure mtime comparison works
+		if runtime.GOOS == "windows" {
+			time.Sleep(200 * time.Millisecond)
+		} else {
+			time.Sleep(50 * time.Millisecond)
+		}
 		
 		// Start daemon server in clone2
 		socketPath := filepath.Join(clone2BeadsDir, "bd.sock")

cmd/bd/daemon_sync_branch_test.go

@@ -563,6 +563,11 @@ func TestSyncBranchPull_Success(t *testing.T) {
 		t.Error("JSONL not copied to main repo after pull")
 	}
 
+	// On Windows, file I/O may need time to settle
+	if runtime.GOOS == "windows" {
+		time.Sleep(100 * time.Millisecond)
+	}
+
 	// Verify JSONL content matches
 	clone1Data, err := os.ReadFile(clone1JSONLPath)
 	if err != nil {

cmd/bd/migrate.go

@@ -512,13 +512,19 @@ func detectDatabases(beadsDir string) ([]*dbInfo, error) {
 }
 
 func getDBVersion(dbPath string) string {
-	// Open database read-only
+	// Open database read-only using file URI (same as production code)
-	db, err := sql.Open("sqlite", dbPath+"?mode=ro")
+	connStr := "file:" + dbPath + "?mode=ro&_time_format=sqlite"
+	db, err := sql.Open("sqlite3", connStr)
 	if err != nil {
 		return "unknown"
 	}
 	defer db.Close()
 
+	// Ping to ensure connection is actually established
+	if err := db.Ping(); err != nil {
+		return "unknown"
+	}
+
 	// Try to read version from metadata table
 	var version string
 	err = db.QueryRow("SELECT value FROM metadata WHERE key = 'bd_version'").Scan(&version)
@@ -526,6 +532,7 @@ func getDBVersion(dbPath string) string {
 		return version
 	}
 
+	// If the row doesn't exist but table does, this is still a database with metadata
 	// Check if metadata table exists
 	var tableName string
 	err = db.QueryRow(`
@@ -537,6 +544,11 @@ func getDBVersion(dbPath string) string {
 		return "pre-0.17.5"
 	}
 
+	// Table exists but version query failed (probably no bd_version key)
+	if err == nil {
+		return "unknown"
+	}
+
 	return "unknown"
 }