diff --git a/pyproject.toml b/pyproject.toml
index 549fd7ae..c68d7d6d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,157 +1,157 @@
-[project]
-name = "forecastlabai"
-version = "0.1.0"
-description = "Portfolio-grade end-to-end retail demand forecasting system"
-readme = "README.md"
-requires-python = ">=3.12"
-license = { text = "MIT" }
-authors = [{ name = "ForecastLabAI Team" }]
-dependencies = [
-    "fastapi>=0.115.0",
-    "uvicorn[standard]>=0.32.0",
-    "pydantic>=2.10.0",
-    "pydantic-settings>=2.6.0",
-    "sqlalchemy[asyncio]>=2.0.36",
-    "asyncpg>=0.30.0",
-    "structlog>=24.4.0",
-    "alembic>=1.14.0",
-    "python-dotenv>=1.0.1",
-]
-
-[project.optional-dependencies]
-dev = [
-    "pytest>=8.3.0",
-    "pytest-asyncio>=0.24.0",
-    "pytest-cov>=6.0.0",
-    "httpx>=0.28.0",
-    "ruff>=0.8.0",
-    "mypy>=1.13.0",
-    "pyright>=1.1.390",
-]
-
-[build-system]
-requires = ["hatchling"]
-build-backend = "hatchling.build"
-
-[tool.hatch.build.targets.wheel]
-packages = ["app"]
-
-# =============================================================================
-# Ruff Configuration (per docs/validation/ruff-standard.md)
-# =============================================================================
-[tool.ruff]
-target-version = "py312"
-line-length = 100
-
-exclude = [
-    ".git",
-    ".venv",
-    "venv",
-    "__pycache__",
-    ".mypy_cache",
-    ".pytest_cache",
-    ".ruff_cache",
-    "alembic/versions",
-]
-
-[tool.ruff.lint]
-select = [
-    "E",      # pycodestyle errors
-    "W",      # pycodestyle warnings
-    "F",      # pyflakes
-    "I",      # isort (import sorting)
-    "B",      # flake8-bugbear (catch mutable defaults, etc.)
-    "C4",     # flake8-comprehensions
-    "UP",     # pyupgrade (modernize syntax)
-    "ANN",    # flake8-annotations (enforce type hints)
-    "S",      # flake8-bandit (security)
-    "DTZ",    # flake8-datetimez (timezone-aware datetimes)
-    "RUF",    # Ruff-specific rules
-    "ARG",    # flake8-unused-arguments
-    "PTH",    # flake8-use-pathlib (prefer Path over os.path)
-]
-
-ignore = [
-    "S311",   # Standard random is fine for non-crypto use
-    "E501",   # Line too long (formatter handles this)
-]
-
-[tool.ruff.lint.per-file-ignores]
-"tests/**/*.py" = ["S101", "ANN", "ARG001", "D", "E731"]
-"test_*.py" = ["S101", "ANN", "ARG001", "D", "E731"]
-"**/tests/**/*.py" = ["S101", "ANN", "ARG001", "D", "E731"]
-"__init__.py" = ["F401"]
-"scripts/**/*.py" = ["T201", "ANN", "S101"]
-"examples/**/*.py" = ["T201", "ANN"]
-"app/core/health.py" = ["B008"]
-"alembic/env.py" = ["ANN"]
-
-[tool.ruff.format]
-quote-style = "double"
-indent-style = "space"
-line-ending = "auto"
-
-[tool.ruff.lint.isort]
-known-first-party = ["app"]
-
-# =============================================================================
-# MyPy Configuration (per docs/validation/mypy-standard.md)
-# =============================================================================
-[tool.mypy]
-python_version = "3.12"
-strict = true
-show_error_codes = true
-warn_unused_ignores = true
-
-# Practical adjustments
-disallow_untyped_defs = true
-disallow_incomplete_defs = true
-check_untyped_defs = true
-disallow_untyped_decorators = false  # FastAPI decorators aren't typed
-
-[[tool.mypy.overrides]]
-module = "*.tests.*"
-disallow_untyped_defs = false
-
-[[tool.mypy.overrides]]
-module = "tests.*"
-disallow_untyped_defs = false
-
-[[tool.mypy.overrides]]
-module = "alembic.*"
-ignore_errors = true
-
-# =============================================================================
-# Pyright Configuration (per docs/validation/pyright-standard.md)
-# =============================================================================
-[tool.pyright]
-include = ["app"]
-exclude = [
-    "**/__pycache__",
-    ".venv",
-    ".mypy_cache",
-    ".pytest_cache",
-    ".ruff_cache",
-    "alembic",
-    "**/tests/**",
-    "tests",
-]
-pythonVersion = "3.12"
-pythonPlatform = "Linux"
-typeCheckingMode = "strict"
-
-# Test files can have unused functions (fixtures, route handlers)
-reportUnusedFunction = "none"
-
-# =============================================================================
-# Pytest Configuration (per docs/validation/pytest-standard.md)
-# =============================================================================
-[tool.pytest.ini_options]
-asyncio_mode = "auto"
-testpaths = ["app", "tests"]
-markers = [
-    "integration: marks tests requiring real database (deselect with '-m \"not integration\"')",
-]
-filterwarnings = [
-    "ignore::DeprecationWarning",
-]
+[project]
+name = "forecastlabai"
+version = "0.1.0"
+description = "Portfolio-grade end-to-end retail demand forecasting system"
+readme = "README.md"
+requires-python = ">=3.12"
+license = { text = "MIT" }
+authors = [{ name = "ForecastLabAI Team" }]
+dependencies = [
+    "fastapi>=0.115.0",
+    "uvicorn[standard]>=0.32.0",
+    "pydantic>=2.10.0",
+    "pydantic-settings>=2.6.0",
+    "sqlalchemy[asyncio]>=2.0.36",
+    "asyncpg>=0.30.0",
+    "structlog>=24.4.0",
+    "alembic>=1.14.0",
+    "python-dotenv>=1.0.1",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=8.3.0",
+    "pytest-asyncio>=0.24.0",
+    "pytest-cov>=6.0.0",
+    "httpx>=0.28.0",
+    "ruff>=0.8.0",
+    "mypy>=1.13.0",
+    "pyright>=1.1.390",
+]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["app"]
+
+# =============================================================================
+# Ruff Configuration (per docs/validation/ruff-standard.md)
+# =============================================================================
+[tool.ruff]
+target-version = "py312"
+line-length = 100
+
+exclude = [
+    ".git",
+    ".venv",
+    "venv",
+    "__pycache__",
+    ".mypy_cache",
+    ".pytest_cache",
+    ".ruff_cache",
+    "alembic/versions",
+]
+
+[tool.ruff.lint]
+select = [
+    "E",      # pycodestyle errors
+    "W",      # pycodestyle warnings
+    "F",      # pyflakes
+    "I",      # isort (import sorting)
+    "B",      # flake8-bugbear (catch mutable defaults, etc.)
+    "C4",     # flake8-comprehensions
+    "UP",     # pyupgrade (modernize syntax)
+    "ANN",    # flake8-annotations (enforce type hints)
+    "S",      # flake8-bandit (security)
+    "DTZ",    # flake8-datetimez (timezone-aware datetimes)
+    "RUF",    # Ruff-specific rules
+    "ARG",    # flake8-unused-arguments
+    "PTH",    # flake8-use-pathlib (prefer Path over os.path)
+]
+
+ignore = [
+    "S311",   # Standard random is fine for non-crypto use
+    "E501",   # Line too long (formatter handles this)
+]
+
+[tool.ruff.lint.per-file-ignores]
+"tests/**/*.py" = ["S101", "ANN", "ARG001", "D", "E731"]
+"test_*.py" = ["S101", "ANN", "ARG001", "D", "E731"]
+"**/tests/**/*.py" = ["S101", "ANN", "ARG001", "D", "E731"]
+"__init__.py" = ["F401"]
+"scripts/**/*.py" = ["T201", "ANN", "S101"]
+"examples/**/*.py" = ["T201", "ANN"]
+"app/core/health.py" = ["B008"]
+"alembic/env.py" = ["ANN"]
+
+[tool.ruff.format]
+quote-style = "double"
+indent-style = "space"
+line-ending = "auto"
+
+[tool.ruff.lint.isort]
+known-first-party = ["app"]
+
+# =============================================================================
+# MyPy Configuration (per docs/validation/mypy-standard.md)
+# =============================================================================
+[tool.mypy]
+python_version = "3.12"
+strict = true
+show_error_codes = true
+warn_unused_ignores = true
+
+# Practical adjustments
+disallow_untyped_defs = true
+disallow_incomplete_defs = true
+check_untyped_defs = true
+disallow_untyped_decorators = false  # FastAPI decorators aren't typed
+
+[[tool.mypy.overrides]]
+module = "*.tests.*"
+disallow_untyped_defs = false
+
+[[tool.mypy.overrides]]
+module = "tests.*"
+disallow_untyped_defs = false
+
+[[tool.mypy.overrides]]
+module = "alembic.*"
+ignore_errors = true
+
+# =============================================================================
+# Pyright Configuration (per docs/validation/pyright-standard.md)
+# =============================================================================
+[tool.pyright]
+include = ["app"]
+exclude = [
+    "**/__pycache__",
+    ".venv",
+    ".mypy_cache",
+    ".pytest_cache",
+    ".ruff_cache",
+    "alembic",
+    "**/tests/**",
+    "tests",
+]
+pythonVersion = "3.12"
+pythonPlatform = "Linux"
+typeCheckingMode = "strict"
+
+# Test files can have unused functions (fixtures, route handlers)
+reportUnusedFunction = "none"
+
+# =============================================================================
+# Pytest Configuration (per docs/validation/pytest-standard.md)
+# =============================================================================
+[tool.pytest.ini_options]
+asyncio_mode = "auto"
+testpaths = ["app", "tests"]
+markers = [
+    "integration: marks tests requiring real database (deselect with '-m \"not integration\"')",
+]
+filterwarnings = [
+    "ignore::DeprecationWarning",
+]