Environment housekeeping

[ahouseholder]

This pull request introduces a range of improvements focused on development tooling, code linting, dependency management, and serialization logic. The most significant changes include the addition and configuration of linting and type-checking tools, updates to dependencies for better compatibility and maintainability, and refactoring of datetime and duration serialization logic to use standard libraries.

Development tooling and linting enhancements:

• Added and configured .flake8 and .mypy.ini files for code linting and type checking, including per-file ignores and package-specific settings. Also added a .pre-commit-config.yaml to automate code formatting with Black. [1] [2] [3]
• Expanded the Makefile with targets for setup, dependency upgrades, linting (black, flake8, markdownlint, mypy), testing, and Docker operations to streamline development workflows.

Dependency management:

• Updated dependencies in pyproject.toml to use more flexible version specifiers (>=), added new development dependencies (flake8, mypy, pre-commit, pandas-stubs, types-networkx), and bumped black to a newer version. [1] [2]
• Adjusted black target versions to remove support for Python 3.13, focusing on currently supported versions.

Serialization and validation refactoring:

• Refactored datetime and duration serialization logic in vultron/as_vocab/base/objects/base.py to use the isodate library for durations and Python's built-in datetime.fromisoformat for datetimes, improving standards compliance and reliability. [1] [2] [3]
• Simplified vultron/as_vocab/base/dt_utils.py by removing custom ISO format encoding/decoding functions in favor of standard library usage. [1] [2]

Minor updates and corrections:

• Updated copyright years in LICENSE.md and mdlint.sh.
• Improved markdown linting script to exclude .venv and .git directories. [1] [2]
• Fixed field naming in vultron/as_vocab/activities/case_participant.py for consistency.
• Adjusted model config options in vultron/as_vocab/base/base.py for improved validation behavior.

[Copilot]

Pull Request Overview

This PR focuses on development environment housekeeping by introducing comprehensive linting and type-checking tooling, modernizing dependency management, and refactoring datetime/duration serialization to use standard libraries instead of custom utilities.

Key changes include:

• Addition of comprehensive development tooling (flake8, mypy, pre-commit) with configuration files and Makefile targets
• Migration from custom datetime/duration serialization utilities to standard library and isodate package
• Dependency management improvements with flexible version specifiers and new development dependencies

Reviewed Changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
vultron/as_vocab/base/objects/base.py	Refactored datetime/duration serialization to use isodate and standard library methods
vultron/as_vocab/base/dt_utils.py	Removed custom ISO format encoding/decoding functions, simplified to use standard library
vultron/as_vocab/base/base.py	Updated Pydantic model configuration for better validation behavior
vultron/as_vocab/activities/case_participant.py	Fixed field naming inconsistency for target field
pyproject.toml	Updated dependencies to flexible version specifiers and added development dependencies
mdlint.sh	Updated copyright year and improved directory exclusions
Makefile	Added comprehensive development workflow targets
LICENSE.md	Updated copyright year
.pre-commit-config.yaml	Added pre-commit configuration for Black formatting
.mypy.ini	Added mypy type checking configuration
.flake8	Added flake8 linting configuration

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