* feat(electron): trigger global shortcuts via superproductivity:// URLs
On Wayland the compositor owns global hotkeys, so Electron's globalShortcut
often does not register. Add three actions — toggle-visibility, new-note and
new-task — to the existing protocol handler so a compositor keybind can call
`xdg-open superproductivity://<action>`. No extra CLI tool or runtime is
needed: xdg-open (Linux), open (macOS) and start (Windows) already ship with
the OS, and the running instance receives the URL via the existing
single-instance / second-instance path.
Extract the show/hide logic into a shared toggleWindowVisibility() used by both
the globalShowHide shortcut and the new protocol action, and add a key-repeat
debounce so one held key press no longer hides then immediately re-shows the
window.
Docs: add a Wayland keybind recipe (Niri/sway/Hyprland) to the keyboard
shortcuts wiki page.
Refs #7114
* fix(electron): correct toggle-visibility focus race and debounce
On Linux/Windows the second-instance handler pre-focused the window before processProtocolUrl ran, so toggle-visibility always read 'visible' and hid the window the user asked to show. Skip that pre-focus for toggle-visibility only (new getProtocolAction helper); every other action keeps the bring-to-front behavior.
Make the key-repeat debounce direction-agnostic with a sliding quiet-gap (1000->750ms): it now guards both show and hide, settles a held key on a single toggle, and fires on the xdg-open path where the old isHidden-only guard was always false.
Stop logging the create-task title and URL path to the exportable log (CLAUDE.md rule 9 / privacy).
Add coverage for the real second-instance path, held-key-from-hidden, gap expiry, the #7282 minimize fallback, the macOS hide path, unfocused-show, and the log redaction; document AppImage/Flatpak/Snap scheme registration. Refs #7114.
* fix(electron): show window on cold-start toggle-visibility launch
Cold start: when superproductivity://toggle-visibility launches the app (it wasn't running), the freshly-shown window was immediately hidden again because the toggle saw it focused. Flag the cold-start URL during the argv scan and SHOW — never toggle — the window once it's ready (via processPendingProtocolUrls), respecting start-minimized-to-tray. The already-running second-instance path keeps real toggle behavior.
Rename the two interactive protocol actions new-task/new-note to add-task/add-note: aligns with the app's Add-Task vocabulary and the globalAddTask/globalAddNote keys, and avoids colliding with the programmatic create-task/<title>. The action names are a frozen public contract once users bind them in compositor configs, so this is the pre-merge moment to settle the naming. Refs #7114.
