Add web automation bot infrastructure files for Railway deployment

[yousefz1994s-spec]

• Add package.json with Playwright and production dependencies
• Add Dockerfile optimized for Railway with Playwright support
• Add .env.example with required environment variables
• Add src/index.js main application entry point
• Add src/utils/logger.js logging utility
• Add .dockerignore for optimized builds
• Add .gitignore for project files

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

Test Configuration:

• Device Model or Emulator:
• Android Verison:
• Instagram Version:

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have tested my code in every way I can think of to prove my fix is effective or that my feature works
• Any dependent changes have been merged and published in downstream modules