Fix remaining test database initialization errors (bd-207)

Fixed 38 tests failing with 'database not initialized: issue_prefix config is missing' by replacing manual sqlite.New() calls with test helper functions.

Modified files:
- dep_test.go (4 tests)
- merge_test.go (4 tests)
- export_import_test.go (4 instances)
- import_collision_test.go (10 instances)
- import_bug_test.go (1 instance)
- import_collision_regression_test.go (2 instances)
- import_idempotent_test.go (2 instances)
- init_test.go (4 instances)
- integrity_test.go (3 tests)
- main_test.go (multiple tests)

All database initialization errors are now resolved.
Remaining test failures (2) are unrelated to database initialization.

Amp-Thread-ID: https://ampcode.com/threads/T-a6b09458-b899-49eb-9a62-346fa67f62c7
Co-authored-by: Amp <amp@ampcode.com>

cmd/bd/main_test.go

@@ -14,7 +14,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/steveyegge/beads/internal/storage/sqlite"
 	"github.com/steveyegge/beads/internal/types"
 )
 
@@ -103,11 +102,7 @@ func TestAutoFlushDebounce(t *testing.T) {
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
 	// Create store
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -232,10 +227,7 @@ func TestAutoFlushOnExit(t *testing.T) {
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
 	// Create store
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -411,10 +403,7 @@ func TestAutoFlushStoreInactive(t *testing.T) {
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
 	// Create store
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 
@@ -457,11 +446,7 @@ func TestAutoFlushJSONLContent(t *testing.T) {
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
 	// Create store
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -577,11 +562,7 @@ func TestAutoFlushErrorHandling(t *testing.T) {
 	dbPath = filepath.Join(tmpDir, "test.db")
 
 	// Create store
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -686,11 +667,7 @@ func TestAutoImportIfNewer(t *testing.T) {
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
 	// Create store
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -786,11 +763,7 @@ func TestAutoImportDisabled(t *testing.T) {
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
 	// Create store
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -863,11 +836,7 @@ func TestAutoImportWithCollision(t *testing.T) {
 	dbPath = filepath.Join(tmpDir, "test.db")
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -942,11 +911,7 @@ func TestAutoImportNoCollision(t *testing.T) {
 	dbPath = filepath.Join(tmpDir, "test.db")
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -1020,11 +985,7 @@ func TestAutoImportMergeConflict(t *testing.T) {
 	dbPath = filepath.Join(tmpDir, "test.db")
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -1104,11 +1065,7 @@ func TestAutoImportClosedAtInvariant(t *testing.T) {
 	dbPath = filepath.Join(tmpDir, "test.db")
 	jsonlPath := filepath.Join(tmpDir, "issues.jsonl")
 
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStore(t, dbPath)
 
 	store = testStore
 	storeMutex.Lock()
@@ -1167,19 +1124,10 @@ func TestImportOpenToClosedTransition(t *testing.T) {
 
 	dbPath := filepath.Join(tmpDir, "test.db")
 
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStoreWithPrefix(t, dbPath, "bd")
 
 	ctx := context.Background()
 
-	// Initialize database with prefix
-	if err := testStore.SetConfig(ctx, "issue_prefix", "bd"); err != nil {
-		t.Fatalf("Failed to set issue_prefix: %v", err)
-	}
-
 	// Step 1: Create an open issue in the database
 	openIssue := &types.Issue{
 		ID:          "bd-transition-1",
@@ -1233,19 +1181,10 @@ func TestImportClosedToOpenTransition(t *testing.T) {
 
 	dbPath := filepath.Join(tmpDir, "test.db")
 
-	testStore, err := sqlite.New(dbPath)
-	if err != nil {
-		t.Fatalf("Failed to create storage: %v", err)
-	}
-	defer testStore.Close()
+	testStore := newTestStoreWithPrefix(t, dbPath, "bd")
 
 	ctx := context.Background()
 
-	// Initialize database with prefix
-	if err := testStore.SetConfig(ctx, "issue_prefix", "bd"); err != nil {
-		t.Fatalf("Failed to set issue_prefix: %v", err)
-	}
-
 	// Step 1: Create a closed issue in the database
 	closedTime := time.Now()
 	closedIssue := &types.Issue{