fix(hypr): send universal clipboard chords by keycode

[kvnloo]

Summary

Universal copy/paste/cut/select-all (SUPER+C/V/X/A) synthesize Ctrl chords with send_key_state using letter keysym names. When the active XKB layout is non-Latin (e.g. Russian), those keysyms are absent from the keymap, Hyprland reports key not found, and the shortcut does nothing.

Send the physical XKB keycodes (code:38/53/54/55 for A/X/C/V) instead so the injected chords stay layout-independent. Terminal still gets Ctrl+Shift+C/V on the same physical keys.

Why still needed

Still broken on current quattro. Prior attempts (#9130, #7283, and several closed duplicates) are CONFLICTING/DIRTY against quattro, so this is a fresh minimal tip.

Test plan

• bash test/shell.d/hyprland-default-config-test.sh
• With kb_layout = us,ru and Russian active: SUPER+V pastes, SUPER+C copies (no Hyprland "key not found" toast)
• With US active: same shortcuts still work in normal apps and in the terminal (Ctrl+Shift+C/V)

Fixes #12570

[llstrk]

One source-supported regression: fixed QWERTY positions change the injected shortcut on other Latin layouts.

Preserve logical letters on non-QWERTY layouts

The new keycode constants bypass keysym lookup, but a physical keycode does not preserve the letter across layouts. With a single Dvorak layout (kb_layout = "us", kb_variant = "dvorak"), code 54 is J, not C. French AZERTY similarly puts Q at code 38.

Source-traced normal-application chords, not observed application behavior:

Layout / action	Before	This PR
Dvorak: copy	Ctrl+C	Ctrl+J
Dvorak: paste	Ctrl+V	Ctrl+K
Dvorak: cut	Ctrl+X	Ctrl+Q
French AZERTY: select all	Ctrl+A	Ctrl+Q

Hyprland 0.56.2 accepts code:N directly, whereas the previous letter names resolve to the correct positions in these single-layout configurations. The terminal branch retains Shift, so Dvorak copy/paste instead become Ctrl+Shift+J/K there.

Impact: these shortcuts can invoke unrelated actions or do nothing instead of copy/paste/cut/select-all. Ctrl+Q can quit applications that bind it; individual client reactions were not tested.

Suggested change: preserve logical letter selection on non-QWERTY layouts. Make the non-Latin fallback aware of the layout used for the injected event, rather than applying US physical positions globally.

Verified: source inspection confirms that code:N bypasses the lookup responsible for key not found. Terminal detection, modifier selection and the existing down/up timer are unchanged. This does not establish end-to-end copy/paste success with Russian active.

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Review information

Test scope: conclusions are supported by pinned Omarchy/Hyprland source and XKB layout definitions. No compositor or application-level clipboard testing; proposed corrections are untested.

Community review: Independent automated community review, unaffiliated with the Omarchy team, intended to help prepare PRs for their review.

Automated AI review: Astra Medium initial inspection and synthesis, independent Opus 5.5 High and GPT 6 Sol Xhigh technical reviews, and a fresh Astra Medium editorial check.