Feature/gateway unified analysis

[Rtur2003]

This pull request introduces a few updates related to model handling and YouTube analysis duration thresholds. The main changes are the addition of placeholder files and documentation for models, as well as an adjustment to the minimum duration for analysis.

Model handling updates:

• Added a placeholder binary file model-placeholder.bin to indicate where model files would be located, without including actual model data.
• Added a README (platform/models/README.md) explaining that real model files are not included and that inference is handled externally via INFERENCE_API_URL.

YouTube analysis configuration:

• Increased the minimum duration threshold for analysis in useYouTubeAnalysis from 1200ms to 4000ms to likely improve result quality or reduce unnecessary analysis.

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[Copilot]

Pull request overview

This pull request introduces model placeholder documentation and adjusts the YouTube analysis minimum duration threshold for better user experience. The changes prepare the platform for external model inference while improving the perceived quality of the analysis process.

• Added placeholder documentation to clarify that model files are not stored in the repository and inference is handled externally
• Increased the minimum analysis duration from 1200ms to 4000ms to ensure users perceive the analysis as more thorough

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
platform/models/model-placeholder.bin	Placeholder file indicating where model files would be located without including actual model data
platform/models/README.md	Documentation explaining that real models are handled via external INFERENCE_API_URL (contains encoding issues that need fixing)
platform/hooks/useYouTubeAnalysis.ts	Updated minimum duration threshold from 1200ms to 4000ms to improve perceived analysis quality

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[Copilot]

The README content contains corrupted or garbled text that appears to be Turkish with encoding issues. The text should be properly encoded to be readable. The intended meaning seems to be explaining that this folder does not contain real model files and that inference is handled externally via INFERENCE_API_URL in the Netlify environment.

Suggested change

	# Model Placeholder\n\nBu klasf6r, gerf5ek model aa7b1rld1k dosyalard1 ib7ermez. Netlify ortamd1nda ab7d1rld1klar host edilmiyor; gerf5ek inference, harici INFERENCE_API_URL ile saf7lanacak.\n
	# Model Placeholder
	Bu klasör, gerçek model ağırlık dosyaları içermez. Netlify ortamında ağırlıklar host edilmiyor; gerçek çıkarım (inference), harici `INFERENCE_API_URL` ile sağlanacaktır.