feat(terminal): master/detail node console — shell (part of #215)

[Assar63]

The terminal shell you approved (#215) — a real working node console, replacing the flat menu+log screen. Ships with live values thanks to #213.

Layout

 zwave-terminal   Dongle: * /dev/ttyACM0   7 nodes
 ! WARN [zwave-protocol 0x11]: ...                     <- DaemonError banner (when set)
-------------------------------------------------------
 Nodes               | Node 5 - Kitchen light
 #   name        sec | class 04/10/01  sec S2
 5   Kitchen     S2  | CC 0x25 0x70 0x9F ...
 8   Hallway     S0  | values:
 9   Sensor      S2  |   binary_switch  On      (3s)
                     |   battery        92%     (1h)
-------------------------------------------------------
 12:30:01 node 5 SwitchBinary report: on              <- activity log
-------------------------------------------------------
 up/dn select | [c]ontrol [g]et [f]ail [L]ifeline | [a]dd [x]remove | [p]olicy [e]scenes [h]vac [l]ist [n]et [i]nfo [r]efresh (s:0) [q]uit

What

• nodes.{hpp,cpp} — UI-thread node model: GetNodes + per-node GetNodeMetadata name; GetNodeValues for the selected node. Selection preserved by node id across refreshes.
• render.cpp — pane layout (status / list / detail / log / hint bar), width-fitted and clamped to terminal size; selected row reverse-highlighted; value age rendered 3s/5m/2h/4d. The detail pane is the Node info window #45 node-info view.
• main.cpp — arrow-key selection, a ~2s poll of the selected node's values, [a]/[x] add/remove (1/2 kept as aliases), [r] refresh. The per-CC Get/Control/Policy/Scenes/HVAC actions stay in their runActionMenu submenus.

Security label in the list/detail is derived from the CC list (S2 if 0x9F, S0 if 0x98) — a cheap proxy until NodeSecurityStatus is tracked.

Notes

• Builds on both presets (utils on); 471/471 ctest unaffected (the TUI has no ctest harness — gate is compile + tidy + manual); clang-format + clang-tidy clean.
• Mirrors handlers.hpp's <algorithm>-before-sdbus include guard for GCC 15's -Wtemplate-body (Message.h uses std::copy_n).

Remaining #215

• contextual actions on the selection (skip the node-id prompt for [c]/[g]/[f]/[L]);
• auto-refresh on NodeListChanged / NodeValueChanged signals (today: [r] / add-remove for the list, ~2s poll for values);
• the DSK confirm modal (DSKPendingConfirmation/ConfirmDSK, S2 phase 9: inclusion bootstrap wiring #187).

Realises #45 (node info window) as the detail pane.

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