feat: improve binary file handling

[matiaspalmac]

Changes

Bundles two related improvements for how the app handles non-UTF-8 / binary files clicked from the explorer.

1. Quieter error path (supersedes #31). read_file is now called with { silent: true }, and the caller distinguishes the expected UTF-8 decoding error from real failures:

• UTF-8 error → open the tab as a "binary" type (see below).
• Any other error (permission denied, file locked, etc.) → console.error from the caller so real failures stay visible instead of being swallowed.

Previously safeInvoke logged [Tauri Invoke Error] read_file: "stream did not contain valid UTF-8" for every binary-file click even though the flow was handled correctly — just noise.

2. Descriptive placeholder view. Instead of rendering --- BINARY --- as literal text inside Monaco (with cursor, minimap, line numbers), binary files now show a centered message in the editor area — same UX pattern as VS Code.

• apps/desktop/src/context/AppContext.tsx: extends FileState.type and openFile to accept "binary" alongside "file" and "virtual".
• apps/desktop/src/components/EditorArea.tsx: adds an isBinaryTab branch that renders a centered placeholder, skipping Monaco entirely.
• apps/desktop/src/addons/builtin.git-explorer/GitExplorerComponent.tsx: silences read_file, routes UTF-8 errors to a "binary" tab, logs everything else.
• apps/desktop/src/api/builtin.l10n.ts: rewrites editor.bin_file in en and es to a full-sentence, VS-Code-style message.

Net: 4 files, small additions.

Issues

• fix [Bug]: Console error when clicking a binary file not in the hardcoded extension list #30
• fix [Enhancement]: Show descriptive message for binary files instead of rendering placeholder in Monaco #32

[Copilot]

Pull request overview

Adds a dedicated “binary” tab type so binary/unsupported-encoding files render a centered placeholder message instead of being shown inside Monaco as sentinel text.

Changes:

• Extend FileState.type / openFile to support a new "binary" file type.
• Render a centered translated placeholder in EditorArea for "binary" tabs (skips Monaco).
• Open files as "binary" on UTF-8 decode failures and update editor.bin_file translations.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
apps/desktop/src/context/AppContext.tsx	Adds "binary" to the file/tab type union used throughout the app.
apps/desktop/src/components/EditorArea.tsx	Renders a centered placeholder for binary tabs instead of mounting Monaco.
apps/desktop/src/addons/builtin.git-explorer/GitExplorerComponent.tsx	Opens binary tabs on UTF-8 decode failures when reading files.
apps/desktop/src/api/builtin.l10n.ts	Updates EN/ES editor.bin_file text to a full descriptive sentence.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.