chore: bootstrap project structure and tooling configuration

[priyanshuvishwakarma273403]

This pull request establishes the core bootstrap structure and tooling configuration for the algorithm-pattern-classifier repository.
Key changes:

• Created the src/ layout and minimal future module directory boundaries (classifiers, detectors, interfaces, models, config) with empty init packages.
• Added a basic tests/ package directory for future testing infrastructure.
• Added pyproject.toml configuring hatchling build backend, Ruff linting/formatting rules, and MyPy strict mode defaults.
• Configured .gitignore, .editorconfig, and .pre-commit-config.yaml for developer tooling.
• Created minimal README.md documenting setup, linting/formatting, and testing commands.
  Dependencies are kept strictly to Ruff, MyPy, pytest, and pre-commit. No classifier engines or mock algorithms are included in this initial setup.