chore: delete dead kernel Go code

Remove orphaned channel/message type comments from interfaces.go,
unused roleFilterType() function from pages.go, and stale version
comment from main.go.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/main.go

@@ -59,13 +59,10 @@ func main() {
 	// ── Server startup ──────────────────────
 	cfg := config.Load()
 
-	// v0.33.0: Structured logging — must be first so all subsequent
+	// Structured logging — must be first so all subsequent
 	// log output goes through slog.
 	logging.Init(cfg.LogFormat, cfg.LogLevel)
 
-
-	// v0.29.1: Config-file provider types (Ollama, LiteLLM, vLLM, etc.)
-
 	var stores store.Stores
 	uekCache := crypto.NewUEKCache()
 	var keyResolver *crypto.KeyResolver

server/pages/pages.go

@@ -278,7 +278,6 @@ func (e *Engine) parseTemplates() {
 		"toJSON":         toJSON,
 		"eq":             func(a, b string) bool { return a == b },
 		"contains":       stringContains,
-		"roleFilterType": roleFilterType,
 		"esc":            template.HTMLEscapeString,
 		"safeHTML":       func(s string) template.HTML { return template.HTML(s) },
 		"join":           strings.Join,
@@ -919,18 +918,6 @@ func stringContains(haystack []string, needle string) bool {
 	return false
 }
 
-// roleFilterType returns the model_type filter for a given role name.
-func roleFilterType(role string) string {
-	switch role {
-	case "embedding":
-		return "embedding"
-	case "utility":
-		return "chat"
-	default:
-		return ""
-	}
-}
-
 // dict creates a map from alternating key/value pairs for template use.
 func dict(pairs ...any) map[string]any {
 	m := make(map[string]any, len(pairs)/2)

server/store/interfaces.go

@@ -175,11 +175,6 @@ type TeamStore interface {
 	MergeSettings(ctx context.Context, teamID, settingsJSON string) error
 }
 
-// ChannelListFilter holds filter options for ChannelStore.ListFiltered.
-// ChannelListItem is returned by ListFiltered and GetForUser.
-// ArchivedChannel is a view model for the admin archived channels list.
-// MessageWithSender is returned by MessageStore.ListWithSenderInfo.
-// ChannelSearchResult is returned by MessageStore.SearchInChannel.
 // =========================================
 // AUDIT STORE
 // =========================================