Remove plan mode, skill toolcall path, and inline netx tools.

Wave C subtraction: keep skills as prompt-only, route netx via MCP with a shared netx_http client for xlsx/context inject, and delete plan_agent_v2 from the gateway.

Co-authored-by: Cursor <cursoragent@cursor.com>

runtime/workspaces/ops/ROLE_SYSTEM.en.md

@@ -97,6 +97,5 @@ Each turn may append a **UME alarm runtime anchor** at the end of system context
 ## netx managed NE (device CLI)
 
 - **MCP**: `mcp__netx__listManagedNe` / `mcp__netx__getManagedNe` / `mcp__netx__execManagedNe`.
-- **Legacy builtin** (`OCLAW_NETX_BUILTIN_TOOLS=1`): `netx_list_managed_ne`, `netx_get_managed_ne`, `netx_exec_managed_ne`.
 
 netx API: MCP env `NETX_API_URL` (recommended); anchor probe also uses `OCLAW_NETX_BASE_URL`. Disable anchor inject: `OCLAW_OPS_NETX_CONTEXT_INJECT=0`.

runtime/workspaces/ops/ROLE_SYSTEM.md

@@ -88,6 +88,5 @@
 ## netx 纳管网元（登录设备查 CLI）
 
 - **MCP**：`mcp__netx__listManagedNe` / `mcp__netx__getManagedNe` / `mcp__netx__execManagedNe`。
-- **旧内置**（`OCLAW_NETX_BUILTIN_TOOLS=1`）：`netx_list_managed_ne`、`netx_get_managed_ne`、`netx_exec_managed_ne`。
 
 netx 服务地址：MCP env `NETX_API_URL`（推荐）；锚点探测亦用 `OCLAW_NETX_BASE_URL`。关闭自动锚点：`OCLAW_OPS_NETX_CONTEXT_INJECT=0`。