Full keyboard mode, Ctrl/Alt/Super, dead keys, shift levels

- Full (iPad Pro) mode: every typing key from the keymap, number row,
  tab, caps lock, ctrl/super/alt; shifted symbol shown above and flickable
- Dead keys compose with the locale's XKB compose table
- Ctrl/Alt/Super stick like shift and turn keys into shortcuts; a tapped
  or held shift joins shortcuts and non-text keys, auto-shift and caps
  lock don't
- Auto-capitalization and caps lock only capitalize letters; the user's
  shift picks the keymap's shifted level
- Mode switch in settings keeps key size by resizing the window

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -7,6 +7,8 @@ iPad-style floating on-screen keyboard for Plasma Wayland. Qt 6, C++ core, QML U
 - Letters follow the system keyboard layout; the globe key switches it
 - Auto-capitalization, double-space → ". " (both optional, ⚙ on the bottom bar), backspace repeat → word delete
 - Long-press space = trackpad; slide from `.?123` onto a symbol and release
+- Compact (iPad) or full (iPad Pro) keyboard: number row, punctuation, tab, caps lock, ctrl/alt/super, dead keys
+- Ctrl/Alt/Super stick like shift (tap, double-tap, hold) and turn keys into shortcuts; a tapped or held shift joins them (Shift+F5, Shift+Tab, Shift+arrows), auto-shift and caps lock don't
 - Optional PC key blocks: function row, navigation (ins/home/pg up, del/end/pg dn, arrows), numeric keypad; any mix, typing keys included (⚙)
 - Floating: drag the bottom bar, resize from the corner; geometry is remembered per screen
 
@@ -37,6 +39,8 @@ Dev hooks: `SLOPOSK_AUTOTYPE=text` commits on focus; `SLOPOSK_SCREENSHOT=file.pn
 
 Letters come from the system keymap (what KWin sends to every client): its Q/A/Z rows become the three letter rows. Letters elsewhere, e.g. Slovak ľščťž on the number row, become long-press alternates. The globe key switches the system layout over `org.kde.keyboard`, so the physical keyboard follows.
 
+In full mode every typing key comes from the keymap (number row, `[ ] \ ; ' , . /` or the layout's equivalents), with the shifted symbol shown above. Dead keys compose with the locale's XKB compose table.
+
 Everything else is `layouts/template.json`; `~/.local/share/sloposk/template.json` replaces it.
 
 ```json
@@ -46,14 +50,17 @@ Everything else is `layouts/template.json`; `~/.local/share/sloposk/template.jso
 
 - Key: a string, or an object with `type` (`char` `space` `backspace` `enter` `shift` `layer` `globe` `dismiss` `spacer` `letters` `keysym`), `label`, `shifted`, `flick`, `alternates`, `width` (key units), `target` (for `layer`), `stretch`
 - `keysym`: sends the XKB keysym named by `keysym` (`Home`, `F5`, `Left`...) on press; `repeat` auto-repeats while held
-- `letters`: the keymap row `row` (0–2), with `flicks` handed out left to right
+- `letters`: the keymap's letters in row `row` (0–2), with `flicks` handed out left to right
+- `keys`: every typing key in keymap row `row` (0 = number row … 3 = bottom)
+- `modifier`: `"modifier": "ctrl" | "alt" | "super"`; `capslock`
+- Layer `full`: rows used instead of `rows` in full-keyboard mode
 - `stretch`: the key grows so its row is as wide as the layer's widest (letter counts vary by layout)
 - Top-level `alternates`: long-press choices per letter, after the keymap's own
 - Top-level `sections`: optional blocks, `{"id", "name", "placement": "above" | "right", "rows"}`; the user picks which show
 
 ## Settings
 
-`~/.config/sloposk/sloposk.conf`, also editable from the ⚙ panel: `typing/autoCapitalize`, `typing/doubleSpacePeriod`, `layout/visibleSections` (`main` plus section ids).
+`~/.config/sloposk/sloposk.conf`, also editable from the ⚙ panel: `typing/autoCapitalize`, `typing/doubleSpacePeriod`, `layout/visibleSections` (`main` plus section ids), `layout/fullKeyboard`.
 
 ## Architecture