[FEATURE] Remove Unnecessary @ffmpeg/* Dependencies from package.json

Platform

Windows 11

Browser

Chrome 137

Current Behavior

The project currently lists the following dependencies in package.json:
https://github.com/OpenCut-app/OpenCut/blob/main/apps/web/package.json#L17-L19

These appear to be unnecessary for the current codebase and introduce extra bundle size, install time, and (potentially) licensing / security surface. We already have (or can adopt) a better alternative that does not require shipping the full WebAssembly-based FFmpeg packages.

Why This Is a Bug

• Adds large transitive downloads (WASM binaries) that are never invoked in the code paths I inspected.
• Increases cold start / build time.
• Potentially bloats client bundle (if any part is bundled) or node_modules size.
• Creates confusion for contributors who may assume FFmpeg-based media processing is required.

Expected Behavior

The project should not include heavyweight media-processing dependencies if they are not required. Media functionality (if any) should rely on the chosen alternative approach.

Recurrence Probability

Always

Steps To Reproduce

• Clone the repo and install dependencies (pnpm install / npm install / yarn install).
• Observe that @ffmpeg/core, @ffmpeg/ffmpeg, and @ffmpeg/util are installed.
• Search the codebase for imports:
• grep -R "@ffmpeg/ffmpeg" src/ (or equivalent) returns no meaningful usage (only maybe leftover comments or none at all).
• Run the application / build; functionality works without actually invoking these packages.

Anything else?

@mazeincoding should be able to provide a better alternative.

Start with apps/web/package.json at the referenced dependency entries, then search the codebase for imports of @ffmpeg/ffmpeg, @ffmpeg/core, and @ffmpeg/util. Run the documented install and build or application checks after removing them; done means the packages are no longer installed and the media functionality still works.