phsl / new-api

frontend(ChannelsTable):
• Do not render type-filter Tabs when `enableTagMode` is true, preventing UI/logic conflicts in tag aggregation view.
• Adjust API query construction:
  – Append `type=` param only when NOT in tag mode and selected tab ≠ 'all'.
  – Applies to both `loadChannels` and `searchChannels`.
• Result: UI stays clean in tag view, and backend receives correct parameters across modes.

No other functionality affected.