add: formatCode cmd back in codemirror 6

[UnschooledGamer]

No description provided.

[greptile-apps]

Greptile Summary

This PR restores the formatCode keyboard command (Ctrl-Alt-F) that was lost during the migration to CodeMirror 6. The addition hooks into the existing acode.exec("format") action path — the same path used by the file menu and saveFile.js — so no other files need to change.

Confidence Score: 5/5

Safe to merge — single-entry addition with no logic changes and confirmed integration with existing action dispatch.

The change is a one-entry addition to a config array. The action: "format" string is validated by existing callers in saveFile.js and file-menu.hbs, readOnly: false correctly guards against mutations on read-only files, and editorOnly: true matches comparable commands. No new code paths, no security surface.

No files require special attention.

Important Files Changed

Filename	Overview
src/lib/keyBindings.js	Adds formatCode binding (Ctrl-Alt-F, action: "format") to APP_BINDING_CONFIG; action string is confirmed valid, readOnly/editorOnly flags are semantically correct, and no key conflicts were found.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["User presses Ctrl-Alt-F"] --> B["CodeMirror keymap intercepts"]
    B --> C["executeCommand('formatCode', view)"]
    C --> D{"commandRunsInReadOnly?"}
    D -- "readOnly:false → blocked when view is read-only" --> E["return false (no-op)"]
    D -- "editor is writable" --> F["command.run(view)"]
    F --> G["acode.exec('format')"]
    G --> H["Format handler runs"]

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