feat(prompts,agents,voice): the voice agent gets the beaver voice, its own environment and overlay

beaver_agent/agents.py

@@ -22,7 +22,6 @@ from beaver_agent.policy import (
 )
 from beaver_agent.vault import TZ, VAULT
 from beaver_agent.voice import AGENT as VOICE
-from beaver_agent.voice import PROMPT as VOICE_PROMPT
 
 if TYPE_CHECKING:
     from beaver_gateway.agents.base import BaseAgent
@@ -114,8 +113,7 @@ def voice(name: str, model: str) -> ClaudeAgent:
         name=name,
         model=model,
         cwd=Path("/tmp"),  # noqa: S108
-        system_prompt=VOICE_PROMPT,
-        kinds=("branch",),
+        prompts=prompts.VOICE_AGENT,
         options=ClaudeOptions(tools=(), disallowed_tools=TRIAGE_DISALLOWED),
     )