chore: update cicd workflows

[marcellodebernardi]

This PR updates the repository's continuous integration workflows in the following ways:

1. Additional checks on PR (gitleaks, PR title, ensure pyproject.toml version bump, etc)
2. Minor changes to linting rules
3. Added a script we use to generate "code index" files that are very helpful for coding agents

[greptile-apps]

Greptile Overview

Greptile Summary

This PR enhances the CI/CD pipeline with additional quality checks and automation:

• Added version enforcement: New workflow and pre-commit hook ensure pyproject.toml version is bumped when plexe/ code changes (excluding auto-generated CODE_INDEX.md)
• Added PR validation: Branch names must follow <type>/description pattern, PR titles must follow conventional commits format
• Optimized linting: Split Black and Ruff into separate jobs, now run only on changed Python files for faster CI
• Added security scanning: Integrated gitleaks to detect secrets in commits
• Added code documentation: New script auto-generates CODE_INDEX.md files via pre-commit hook to help coding agents understand the codebase
• Updated dependencies: Bumped Black (25.12.0) and Ruff (0.14.9), added docstring requirements (D100, D101)

All changes align with the PR description and support the goal of maintaining code quality and consistency. The version check workflow correctly excludes CODE_INDEX.md per the addressed feedback.

Confidence Score: 5/5

• Safe to merge - well-structured CI/CD improvements with no functional code changes
• All changes are infrastructure and tooling improvements with proper error handling, validation logic, and appropriate exclusions for auto-generated files
• No files require special attention

Important Files Changed

Filename	Overview
.github/workflows/integration.yml	Split linting into separate jobs, added branch/PR title validation, optimized to run only on changed files
.github/workflows/version-check.yml	New workflow to enforce version bumps when plexe/ code changes, excluding CODE_INDEX.md
.pre-commit-config.yaml	Updated tool versions, added gitleaks for secret scanning, and auto-generation of CODE_INDEX.md files
scripts/generate_code_index.py	New script to auto-generate CODE_INDEX.md documentation from Python code using AST parsing
pyproject.toml	Updated black and ruff versions, added docstring linting rules (D100, D101)

[greptile-apps]

_{5 files reviewed, 3 comments}

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[Copilot]

Pull request overview

This PR updates the repository's continuous integration and development workflows with enhanced quality checks, automated code indexing for AI coding agents, and version management enforcement.

Changes:

• Added automated code index generation script that creates documentation from Python AST for AI agent consumption
• Implemented version bump enforcement to ensure pyproject.toml version is incremented when plexe/ changes
• Enhanced CI/CD with PR validation (branch naming, PR title conventions), gitleaks security scanning, and version validation on releases
• Updated linting tool versions and added docstring requirement rules

Reviewed changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
scripts/generate_code_index.py	New script to generate CODE_INDEX.md files from Python AST for AI coding agents
scripts/check_version_bump.py	New script to enforce version bumps when plexe/ code changes
scripts/dumpcode.py	Removed legacy code dumping script (replaced by code index generation)
tests/CODE_INDEX.md	Generated code index for test suite (auto-generated documentation)
plexe/CODE_INDEX.md	Generated code index for main package (auto-generated documentation)
.pre-commit-config.yaml	Updated tool versions and added version check, code index generation, and gitleaks hooks
.github/workflows/version-check.yml	New workflow to verify version bumps on PRs affecting plexe/
.github/workflows/publish.yml	Added version validation to ensure release tag matches pyproject.toml
.github/workflows/integration.yml	Added branch name and PR title validation checks
pyproject.toml	Updated black and ruff versions, added docstring linting rules

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[marcellodebernardi]

@greptileai review again with latest changes

[marcellodebernardi]

@greptileai review again with latest changes