feat(blocks): Add Image to video block with Kling Pro 1.5

[Torantulino]

Feature: Image to Video Generation Block for FAL AI Integration

Summary

Adds a new Image-to-Video block that integrates with FAL AI's video generation service. The block enables users to animate static images by providing a source image URL and a descriptive prompt. It implements a robust queueing system with progress monitoring and error handling.

Technical Changes

• backend/blocks/fal/image-to-video-block.py (New File):
  • Implements ImageToVideoBlock class with input/output schemas
  • Implements status polling with exponential backoff
  • Provides real-time progress logging

Impact Analysis

• Breaking Changes: No
• Performance Impact:
  • Implements exponential backoff for polling (5-60 seconds)
  • Maximum 30 polling attempts per request
• Dependencies:
  • Requires httpx for HTTP requests
  • Depends on FAL AI external service
  • Uses existing FAL credentials system

[supabase]

This pull request has been ignored for the connected project bgwpwdsxblryihinutbx because there are no changes detected in supabase directory. You can change this behaviour in Project Integrations Settings ↗︎.

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[github-actions]

This PR targets the master branch but does not come from dev or a hotfix/* branch.

Automatically setting the base branch to dev.

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