feat(core): add zoom in/out actions and thumb-wheel zoom preset

[johnbuzz98]

Summary

Logi Options+ can map the MX Master thumb wheel to zoom, but OpenLogi has no zoom action, so users coming from Options+ lose that mapping. This adds ZoomIn / ZoomOut actions and two thumb-wheel presets, Zoom Out / In and Zoom In / Out, so rolling the wheel forward zooms in and backward zooms out (or the reverse).

The actions send the standard zoom chords: Cmd+= / Cmd+- on macOS and Ctrl+= / Ctrl+- on Linux and Windows. That covers browsers, Preview, Office, and most editors. They are ordinary discrete actions, so the existing thumb-wheel threshold and cooldown apply.

Changes

• openlogi-core: append Action::ZoomIn / ZoomOut (Navigation category, pickable) and Shortcut::ZoomIn / ZoomOut, append ActionRingIcon::ZoomIn / ZoomOut, and extend the serialized-name test.
• openlogi-inject: map the new shortcuts in the macOS, Linux, and Windows chord tables; pin the macOS and Linux rows in combo_table_pins_representative_shortcuts; list the actions in the inject_action example.
• openlogi-ipc: bump PROTOCOL_VERSION to 32 for the appended wire variants. Existing goldens are unchanged because the variants are appended.
• openlogi-ui: add zoom-in.svg / zoom-out.svg (Lucide) to the embedded icons, and add actions.zoom_in, actions.zoom_out, pointer.zoom_out_in, and pointer.zoom_in_out to every locale in the same position.
• openlogi-desktop: add the Zoom / ZoomReversed thumb-wheel presets and the action icons.

Testing

On macOS (Apple Silicon, Command Line Tools only):

export RUSTFLAGS="-D warnings"
cargo fmt --all -- --check
cargo clippy --workspace --exclude openlogi-desktop --exclude openlogi-overlay --all-targets -- -D warnings
cargo test --workspace --exclude openlogi-desktop --exclude openlogi-overlay
RUSTDOCFLAGS="-D warnings" cargo doc --workspace --no-deps --document-private-items \
  --exclude openlogi-ui --exclude openlogi-desktop --exclude openlogi-overlay --exclude openlogi-agent
cargo test -p openlogi-desktop thumbwheel   # with gpui runtime_shaders enabled locally (no Metal toolchain)

Workspace tests: 1456 passed, including locale_files_have_the_same_keys, the wire_format goldens, and the macOS combo-table test.

Live injection check on macOS: cargo run --example inject_action -p openlogi-inject -- ZoomIn ZoomIn ZoomIn, with Chrome frontmost, zoomed example.com from 100% to 150%, and ZoomOut brought it back to 100%.

Not runtime-tested end to end on hardware: I haven't driven the full thumb-wheel → agent → inject path with a physical MX Master 3 on this build, and openlogi-desktop / openlogi-overlay clippy and the GUI screenshot were not run here (the host lacks Xcode's Metal compiler). To test: pick Thumb Wheel → Zoom Out / In in the Buttons tab, then roll the wheel in a browser.

[greptile-apps]

Confidence Score: 4/5

[Medium risk] Adds zoom in and out actions to the input binding system.

The PR appears safe to merge; the Windows zoom chords would benefit from a non-blocking regression test.

Findings

1.  Windows zoom chords lack tests ▶

Summary

The PR adds zoom actions, platform-specific keyboard chords, and forward/reverse thumb-wheel presets, with matching icons, translations, and an IPC version bump.

• The action-to-injection and thumb-wheel direction paths are wired through existing mechanisms.
• Windows chord identity lacks the regression assertions added for macOS and Linux.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  A["Thumb-wheel preset"] --> B["Backward / forward bindings"]
  B --> C["ZoomOut / ZoomIn actions"]
  C --> D["Shortcut effect"]
  D --> E["Platform keyboard chord"]

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[greptile-apps]

Windows zoom chords lack tests

The Windows test checks that each shortcut key has a virtual-key mapping, but it does not check the modifier or full chord for these new actions. A later change to either zoom chord could therefore break Windows zoom without failing the test. Please pin both chord labels, as the macOS and Linux tests do.

Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!