Implement CLI app for API interaction with MFA

- Create full CLI application with authentication, sync triggering, and status checking
- Implement MFA support for secure authentication
- Add token management with secure local storage
- Create API client for backend communication
- Implement data models for User Session, Sync Job, and Authentication Token
- Add command-line interface with auth and sync commands
- Include unit and integration tests
- Follow project constitution standards for Python 3.13, type hints, and code quality
- Support multiple output formats (table, JSON, CSV)

cli/pyproject.toml

@@ -0,0 +1,32 @@
+[tool.black]
+line-length = 88
+target-version = ['py312']
+include = '\.pyi?$'
+
+[tool.isort]
+profile = "black"
+multi_line_output = 3
+include_trailing_comma = true
+force_grid_wrap = 0
+use_parentheses = true
+ensure_newline_before_comments = true
+line_length = 88
+
+[tool.flake8]
+max-line-length = 88
+extend-ignore = [
+    "E203",  # whitespace before ':'
+    "W503",  # line break before binary operator
+]
+max-complexity = 10
+
+[tool.mypy]
+python_version = "3.13"
+warn_return_any = true
+warn_unused_configs = true
+warn_unused_ignores = true
+warn_redundant_casts = true
+warn_unreachable = true
+disallow_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_untyped_decorators = true