[FEATURE] Include Current File Context in Translation

[FrilLab]

Problem

Current translations only use the selected text.

This can lead to inaccurate translations because the model has no knowledge of surrounding code, comments, imports, or file structure.

For example:

borrow

The meaning depends on the current file and programming language context.

Proposed Solution

Include surrounding file content when generating translation requests.

Possible context:

• Current file language
• Nearby lines
• Imports
• Function scope
• Class scope

The selected text remains the primary translation target.

Alternatives

• Translate only the selected text
• Allow users to manually provide context

Additional Context

This is the next step after basic translation.

Goal:

Selected text + current file context → better translation quality.