chore(todo): file driver-health and collapse-glyph follow-ups

Two follow-ups from the 2026-07-04 net-panel/audio speedrun: a driver-health diagnostic tier for the net panel (the "adapter present but wedged" case beyond no-hardware), and replacing the waybar collapse triangle with a glyph that matches the instrument-console look (an aesthetic call, options to bring Craig first).

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diff --git a/todo.org b/todo.org
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@@ -186,6 +186,18 @@ Build handed off to the dotfiles project 2026-07-04 (=~/.dotfiles/inbox/2026-07-
 *** TODO Phase 5 — VPN / WireGuard CLI fold (vNext) :network:
 Rescoped 2026-07-04 (audit): the tunnels track already shipped most of the original Phase 5. Panel tunnel bring-up/down and detection landed (dotfiles 2d9d060 probes tailscale/NM-wireguard/Proton; 21db05a brings overlays up/down from the panel's Tunnels sub-view; 31ba056 diagnose/doctor understand tunnel routes; archsetup 2e40781 wireguard config import; the net-panel-other-interfaces spec is IMPLEMENTED). What remains for Phase 5 is only the =net vpn ...= CLI subcommand — cli.py still has no vpn/tunnel parser. Fold the panel's existing tunnel operations into a CLI surface; spec separately when picked up.
 
+** TODO [#C] Waybar collapse control: replace the triangle glyph :feature:waybar:
+:PROPERTIES:
+:LAST_REVIEWED: 2026-07-04
+:END:
+From the 2026-07-04 roam capture. The waybar collapse mechanism (click the triangle, the bar sections redisplay shortened) works, but the triangle glyph doesn't match the instrument-console aesthetic the panels now use. Replace it with something in keeping with the console look. Aesthetic decision — bring Craig two or three concrete glyph/style options (a machined chevron, a console-key style expander, an engraved caret) before wiring. Dotfiles waybar config (handled per the archsetup-owns-dotfiles rule). Raised alongside the net-panel/audio speedrun; deferred from it because the glyph choice is a taste call.
+
+** TODO [#C] Net panel: driver-health diagnostic tier :feature:network:
+:PROPERTIES:
+:LAST_REVIEWED: 2026-07-04
+:END:
+Follow-up from the 2026-07-04 net-panel hardening speedrun (Craig's cj question on the no-WiFi item). The shipped no-wifi-hardware verdict covers "no adapter at all." This tier covers "adapter present but the driver is wedged": read-only health signals — =ip link= (device present but no-carrier / down), =dmesg= / =journalctl -k= for firmware-load failures, =rfkill= for a hard block, =modinfo= / =lsmod= for the driver module — classified before a generic reset. Remedy actions: a privileged =modprobe -r <mod> && modprobe <mod>= reload of the wifi driver, and a firmware-package pointer when the failure is a missing/failed firmware load. Dotfiles net-package work (handled per the archsetup-owns-dotfiles rule). Design pass first to decide whether it's worth a repair tier vs a needs-user-action pointer.
+
 ** TODO [#B] Timer GTK panel :feature:waybar:
 :PROPERTIES:
 :LAST_REVIEWED: 2026-07-02