fix: resolve ruff linting errors across agents

[eliasecchig]

Summary

• Fix all ruff linting errors across multiple agent projects
• Improve code quality and consistency

Changes

• String split optimizations: Updated string split operations to use maxsplit parameter for better performance

  • customer-service: Fixed time range parsing
  • data-science: Fixed SQL query extraction
  • plumber-data-engineering-assistant: Fixed template path and repository parsing
  • product-catalog-ad-generation: Fixed video filename and image path parsing

• Import organization:

  • Organized imports in retail-ai-location-strategy backend
  • Added noqa comment for necessary late import (required after sys.path modification)

Impact

• All ruff checks now pass
• Improved code efficiency with proper use of maxsplit in string operations
• Better code maintainability

[eliasecchig]

Reverting linting changes - not necessary for this project

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