Add Claude Agent Teams native pane launcher (#4892)

* Add Claude Agent Teams native pane launcher

Co-authored-by: Orca <help@stably.ai>

* Fix Agent Teams CI coverage checks

Co-authored-by: Orca <help@stably.ai>

* Fix Claude Agent Teams split direction mapping

Co-authored-by: Orca <help@stably.ai>

---------

Co-authored-by: Orca <help@stably.ai>

src/main/runtime/rpc/methods/terminal.ts

@@ -485,6 +485,19 @@ const TerminalStop = z.object({
   worktree: requiredString('Missing worktree selector')
 })
 
+const AgentTeamsTmuxCompat = z.object({
+  teamId: requiredString('Missing agent team ID'),
+  token: requiredString('Missing agent team token'),
+  envPane: requiredString('Missing tmux pane identity'),
+  cwd: OptionalString,
+  argv: z.array(z.string())
+})
+
+const AgentTeamsPrepareLaunch = z.object({
+  paneKey: requiredString('Missing pane key'),
+  env: z.record(z.string(), z.string()).optional()
+})
+
 const TerminalResizeForClient = z.discriminatedUnion('mode', [
   z.object({
     terminal: requiredString('Missing terminal handle'),
@@ -771,6 +784,23 @@ export const TERMINAL_METHODS: RpcAnyMethod[] = [
       close: await runtime.closeTerminal(params.terminal)
     })
   }),
+  defineMethod({
+    name: 'agentTeams.tmuxCompat',
+    params: AgentTeamsTmuxCompat,
+    handler: async (params, { runtime }) => ({
+      tmux: await runtime.handleAgentTeamsTmuxCompat(params)
+    })
+  }),
+  defineMethod({
+    name: 'agentTeams.prepareLaunch',
+    params: AgentTeamsPrepareLaunch,
+    handler: async (params, { runtime }) => ({
+      launch: await runtime.prepareClaudeAgentTeamsLeader({
+        paneKey: params.paneKey,
+        baseEnv: params.env
+      })
+    })
+  }),
   defineMethod({
     name: 'terminal.setDisplayMode',
     params: TerminalSetDisplayMode,