chore: bump version to 0.32.1

Changes in 0.32.1:
- feat(mcp): Add output control params (PR#667) - brief, brief_deps, fields, max_description_length
- feat(mcp): Add filtering params - labels, labels_any, query, unassigned, sort_policy
- fix(pin): Add pinned to allowed update fields (gt-zr0a)

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

cmd/bd/info.go

@@ -287,6 +287,16 @@ type VersionChange struct {
 
 // versionChanges contains agent-actionable changes for recent versions
 var versionChanges = []VersionChange{
+	{
+		Version: "0.32.1",
+		Date:    "2025-12-21",
+		Changes: []string{
+			"NEW: MCP output control params (PR#667) - brief, brief_deps, fields, max_description_length",
+			"NEW: MCP filtering params - labels, labels_any, query, unassigned, sort_policy",
+			"NEW: BriefIssue, BriefDep, OperationResult models for 97% context reduction",
+			"FIX: Pin field not in allowed update fields (gt-zr0a) - bd update --pinned now works",
+		},
+	},
 	{
 		Version: "0.32.0",
 		Date:    "2025-12-20",