opentui(phase3): launcher integration — HERMES_TUI_ENGINE dual-engine

hermes --tui launches the native OpenTUI engine (Bun) when
HERMES_TUI_ENGINE=opentui (env) or display.tui_engine=opentui (config);
Ink stays the default and the shipping path is untouched.

- _resolve_tui_engine() (env > config > ink); refuses opentui on
  Windows/Termux (no Bun) -> falls back to ink with a notice.
- _make_opentui_argv() -> [bun, src/entry.real.tsx] (no build step).
- _bun_bin() with HERMES_BUN override.
- Branch at top of _make_tui_argv BEFORE _ensure_tui_node (Bun-only host
  must not bootstrap Node).
- Gate _launch_tui NODE_OPTIONS/--max-old-space-size on engine==ink (Bun
  is JSC; the V8 flag errors/ignores).

Verified end-to-end via tmux: real hermes --tui -> Bun -> OpenTUI ->
real Python gateway streamed a real reply. No-flag default still ink.

hermes_cli/subcommands/cron.py

@@ -70,6 +70,10 @@ def build_cron_parser(subparsers, *, cmd_cron: Callable) -> None:
         "--workdir",
         help="Absolute path for the job to run from. Injects AGENTS.md / CLAUDE.md / .cursorrules from that directory and uses it as the cwd for terminal/file/code_exec tools. Omit to preserve old behaviour (no project context files).",
     )
+    cron_create.add_argument(
+        "--profile",
+        help="Hermes profile name to run the job under. Use 'default' for the root profile. Named profiles must already exist. Omit to preserve the scheduler's existing profile.",
+    )
 
     # cron edit
     cron_edit = cron_subparsers.add_parser(
@@ -134,6 +138,10 @@ def build_cron_parser(subparsers, *, cmd_cron: Callable) -> None:
         "--workdir",
         help="Absolute path for the job to run from (injects AGENTS.md etc. and sets terminal cwd). Pass empty string to clear.",
     )
+    cron_edit.add_argument(
+        "--profile",
+        help="Hermes profile name to run the job under. Use 'default' for the root profile. Pass empty string to clear.",
+    )
 
     # lifecycle actions
     cron_pause = cron_subparsers.add_parser("pause", help="Pause a scheduled job")

hermes_cli/subcommands/dashboard.py

@@ -45,26 +45,6 @@ def build_dashboard_parser(
             "where npm may not be available. Pre-build with: cd web && npm run build"
         ),
     )
-    dashboard_parser.add_argument(
-        "--isolated",
-        action="store_true",
-        help=(
-            "When launched from a named profile (e.g. `worker dashboard`), run "
-            "a dedicated dashboard server scoped to that profile instead of "
-            "routing to the machine dashboard. Default behavior is unified: "
-            "profile launches attach to (or start) ONE machine-level dashboard "
-            "and preselect the profile in the UI's profile switcher."
-        ),
-    )
-    # Internal flag set by the unified-launch re-exec (cmd_dashboard) to
-    # preselect the launching profile in the SPA switcher. Hidden from
-    # --help: users get this behavior automatically via `<profile> dashboard`.
-    dashboard_parser.add_argument(
-        "--open-profile",
-        dest="open_profile",
-        default="",
-        help=argparse.SUPPRESS,
-    )
     # Lifecycle flags — mutually exclusive with each other and with the
     # start-a-server flags above (if both are passed, --stop / --status win
     # because they exit before the server is started).  The dashboard has

hermes_cli/subcommands/mcp.py

@@ -6,7 +6,6 @@ Handler injected to avoid importing ``main``.
 
 from __future__ import annotations
 
-import argparse
 from typing import Callable
 
 from hermes_cli.subcommands._shared import add_accept_hooks_flag
@@ -53,10 +52,7 @@ def build_mcp_parser(subparsers, *, cmd_mcp: Callable) -> None:
         "--command", dest="mcp_command", help="Stdio command (e.g. npx)"
     )
     mcp_add_p.add_argument(
-        "--args",
-        nargs=argparse.REMAINDER,
-        default=[],
-        help="Arguments for stdio command; must be the last option",
+        "--args", nargs="*", default=[], help="Arguments for stdio command"
     )
     mcp_add_p.add_argument("--auth", choices=["oauth", "header"], help="Auth method")
     mcp_add_p.add_argument("--preset", help="Known MCP preset name")