add prompting for HiddenFamilyH (#4832)

* add prompting for HiddenFamilyH

* Update src/platform/endpoint/common/chatModelCapabilities.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: eleanorjboyd

src/extension/prompts/node/agent/allAgentPrompts.ts

@@ -4,6 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import './anthropicPrompts';
+import './familyHPrompts';
 import './geminiPrompts';
 import './minimaxPrompts';
 import './vscModelPrompts';