Feat: On-device OCR to extract and copy text from images

[Surajshivam-123]

Describe the feature

Feature

Add a local, privacy-preserving Optical Character Recognition (OCR) feature that allows users to extract text from photos and copy it directly to their clipboard.

Proposed Implementation & Architecture

1. Backend (On-Device Inference via ONNX)

• Model: Integrate a lightweight, offline ONNX OCR model .
• Register the model under a new or optional feature tier so users can manage/download it locally.
• Implement a dedicated model class extending ONNXSessionBase for thread-safe inference.
• Index extracted text in SQLite so users can search their photo library by text found inside images.

2. Frontend (Viewer & UX)

• Viewer Action: Add a "Scan Text" icon button .
• Extraction Flow:
• Triggering the action shows a subtle loading state while inference runs.
• A modal dialog displays the recognized text with line formatting preserved.
• A primary "Copy to Clipboard" button with immediate feedback (e.g. "Copied!").
• Handles cases where no text was found.
• Prompts the user to download/enable the OCR model from Settings if not yet installed.

Add ScreenShots

Hi @rohan-pandeyy can i work in this feature.

Record

• I agree to follow this project's Code of Conduct
• I want to work on this issue

[github-actions]

👋 Thanks for opening this issue! The maintainers will review it shortly. Till then, do not open any PR. This is a strict rule we like to follow around here :)