fix: code review fixes for Transaction API and Search (epic bd-8bq)

- Add safe type assertions in applyUpdatesToIssue (bd-4gs)
- Add --sort and --reverse flags to bd search (bd-4f6)
- Add test cases for SearchIssues priority range, date range, IDs (bd-ew5)
- Handle errors from GetLabelsForIssues in search.go (bd-lce)
- Standardize error wrapping to fmt.Errorf pattern (bd-7kl)
- Extract shared scanIssueRow helper function (bd-ajf)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

cmd/bd/search.go

@@ -27,7 +27,9 @@ Examples:
   bd search "bd-5q" # Search by partial ID
   bd search "security" --priority-min 0 --priority-max 2
   bd search "bug" --created-after 2025-01-01
-  bd search "refactor" --updated-after 2025-01-01 --priority-min 1`,
+  bd search "refactor" --updated-after 2025-01-01 --priority-min 1
+  bd search "bug" --sort priority
+  bd search "task" --sort created --reverse`,
 	Run: func(cmd *cobra.Command, args []string) {
 		// Get query from args or --query flag
 		queryFlag, _ := cmd.Flags().GetString("query")
@@ -70,6 +72,10 @@ Examples:
 		priorityMinStr, _ := cmd.Flags().GetString("priority-min")
 		priorityMaxStr, _ := cmd.Flags().GetString("priority-max")
 
+		// Sort flags
+		sortBy, _ := cmd.Flags().GetString("sort")
+		reverse, _ := cmd.Flags().GetBool("reverse")
+
 		// Normalize labels
 		labels = util.NormalizeLabels(labels)
 		labelsAny = util.NormalizeLabels(labelsAny)
@@ -279,8 +285,16 @@ Examples:
 			for i, issue := range issues {
 				issueIDs[i] = issue.ID
 			}
-			labelsMap, _ := store.GetLabelsForIssues(ctx, issueIDs)
-			depCounts, _ := store.GetDependencyCounts(ctx, issueIDs)
+			labelsMap, err := store.GetLabelsForIssues(ctx, issueIDs)
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "Warning: failed to get labels: %v\n", err)
+				labelsMap = make(map[string][]string)
+			}
+			depCounts, err := store.GetDependencyCounts(ctx, issueIDs)
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "Warning: failed to get dependency counts: %v\n", err)
+				depCounts = make(map[string]*types.DependencyCounts)
+			}
 
 			// Populate labels
 			for _, issue := range issues {
@@ -382,5 +396,9 @@ func init() {
 	searchCmd.Flags().String("priority-min", "", "Filter by minimum priority (inclusive, 0-4 or P0-P4)")
 	searchCmd.Flags().String("priority-max", "", "Filter by maximum priority (inclusive, 0-4 or P0-P4)")
 
+	// Sort flags
+	searchCmd.Flags().String("sort", "", "Sort by field: priority, created, updated, closed, status, id, title, type, assignee")
+	searchCmd.Flags().BoolP("reverse", "r", false, "Reverse sort order")
+
 	rootCmd.AddCommand(searchCmd)
 }