feat(theme): summon_keys + summon_window_name for global Win+Space toggle

Per operator: "MiOS app should be invokable via a chord/keycombo
like winkey + Spacebar to open and close the window at will".

mios.toml [theme.terminal]:
  summon_keys         = "win+space"   (override to "ctrl+shift+space" etc.)
  summon_window_name  = "MiOS"        (the named window the chord targets)

mios-config.html: two new fields under "theme.terminal & theme.prompt"
fieldset so the operator can edit the chord through the configurator.

The actual binding is written to WT's settings.json by Get-MiOS.ps1's
Install-MiOSTerminalProfile (lands in mios-bootstrap concurrently).
The binding uses WT's globalSummon action with toggleVisibility=true,
monitor=toMouse so the window appears on whichever monitor the cursor
is currently on (matches the existing centering logic).

Note: Win+Space is normally Windows' keyboard-layout switch. WT's
globalSummon overrides it WHILE WT is running. If the operator
prefers to keep layout-switch on Win+Space, they can override the
toml key to "ctrl+shift+space" / "win+grave_accent" / "ctrl+win+m"
without touching code.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: Kabuki94

usr/share/mios/configurator/index.html

@@ -551,6 +551,10 @@ <h1>MiOS configurator <span class="v" id="v-meta">schema 1.2.0 / mios 0.2.4</spa
         <input type="text" id="f-tt-profile" data-key="theme.terminal.profile_name" placeholder="MiOS">
         <label for="f-tt-devprofile">dev_profile_name</label>
         <input type="text" id="f-tt-devprofile" data-key="theme.terminal.dev_profile_name" placeholder="MiOS-DEV">
+        <label for="f-tt-summon-keys">summon_keys (toggle MiOS app from anywhere)</label>
+        <input type="text" id="f-tt-summon-keys" data-key="theme.terminal.summon_keys" placeholder="win+space">
+        <label for="f-tt-summon-name">summon_window_name</label>
+        <input type="text" id="f-tt-summon-name" data-key="theme.terminal.summon_window_name" placeholder="MiOS">
         <label for="f-tp-omp">omp_path</label>
         <input type="text" id="f-tp-omp" data-key="theme.prompt.omp_path" placeholder="/usr/share/mios/oh-my-posh/mios.omp.json">
       </fieldset>

usr/share/mios/mios.toml

@@ -1343,6 +1343,15 @@ chrome_h_px         = 12
 scheme_name         = "MiOS"
 profile_name        = "MiOS"
 dev_profile_name    = "MiOS-DEV"
+# Global summon keybinding (toggle MiOS WT window open/close from
+# anywhere on the desktop). Uses WT's globalSummon action targeting
+# the named window. Operator: "MiOS app should be invokable via a
+# chord/keycombo like winkey + Spacebar to open and close the
+# window at will". Override here to change the chord (e.g.
+# "ctrl+shift+space", "win+grave_accent" for the classic quake
+# pattern, "ctrl+win+m" for a more MiOS-flavored chord).
+summon_keys         = "win+space"
+summon_window_name  = "MiOS"
 
 [theme.prompt]
 # oh-my-posh renderer config. The mios.omp.json on disk is the source