feat: add default template

[Tohrusky]

Summary by Sourcery

New Features:

• Introduce a default template script for video processing using VapourSynth.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR adds a default template for video processing that includes a basic VapourSynth script to load video sources. The implementation uses environment variables for flexible source configuration with a fallback to a default source file.

Class diagram for the default template

classDiagram
    class DefaultTemplate {
        +VideoSource(source: str)
        +set_output()
    }

    note for DefaultTemplate "Uses environment variable FINALRIP_SOURCE for source configuration with a fallback to 's.mkv'."

Loading

File-Level Changes

Change	Details	Files
Added a basic VapourSynth template for video source loading	Implemented environment variable 'FINALRIP_SOURCE' for configurable input source Added fallback to default source file 's.mkv' Set up basic clip output configuration	templates/default.py templates/default_h264_8bit.txt

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[sourcery-ai]

Hey @Tohrusky - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider making the default source filename more explicit (e.g., 'input.mkv') or requiring FINALRIP_SOURCE to be set instead of using 's.mkv' as a fallback
• The default_h264_8bit.txt file appears to be empty - was this intentional?

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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