refactor: modernize code quality tooling with Ruff

- Replace black, isort, and flake8 with Ruff (all-in-one linter and formatter)
- Add comprehensive pyproject.toml configuration
- Simplify Makefile code quality targets
- Configure exclusions for venv/.venv in pyproject.toml
- Auto-fix 1,359 linting issues across codebase

Benefits:
- Much faster builds (Ruff is written in Rust)
- Single tool replaces multiple tools
- More comprehensive rule set (UP, B, C4, SIM, PIE, RET, Q)
- All configuration centralized in pyproject.toml
- Better import sorting and formatting consistency

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/exceptions/team.py

@@ -3,17 +3,21 @@
 Team management specific exceptions.
 """
 
-from typing import Any, Dict, Optional
+from typing import Any
 
-from .base import (AuthorizationException, BusinessLogicException,
-                   ConflictException, ResourceNotFoundException,
-                   ValidationException)
+from .base import (
+    AuthorizationException,
+    BusinessLogicException,
+    ConflictException,
+    ResourceNotFoundException,
+    ValidationException,
+)
 
 
 class TeamMemberNotFoundException(ResourceNotFoundException):
     """Raised when a team member is not found."""
 
-    def __init__(self, user_id: int, vendor_id: Optional[int] = None):
+    def __init__(self, user_id: int, vendor_id: int | None = None):
         details = {"user_id": user_id}
         if vendor_id:
             details["vendor_id"] = vendor_id
@@ -63,7 +67,7 @@ class TeamInvitationExpiredException(BusinessLogicException):
 
     def __init__(self, invitation_token: str):
         super().__init__(
-            message=f"Team invitation has expired",
+            message="Team invitation has expired",
             error_code="TEAM_INVITATION_EXPIRED",
             details={"invitation_token": invitation_token},
         )
@@ -86,8 +90,8 @@ class UnauthorizedTeamActionException(AuthorizationException):
     def __init__(
         self,
         action: str,
-        user_id: Optional[int] = None,
-        required_permission: Optional[str] = None,
+        user_id: int | None = None,
+        required_permission: str | None = None,
     ):
         details = {"action": action}
         if user_id:
@@ -130,7 +134,7 @@ class CannotModifyOwnRoleException(BusinessLogicException):
 class RoleNotFoundException(ResourceNotFoundException):
     """Raised when a role is not found."""
 
-    def __init__(self, role_id: int, vendor_id: Optional[int] = None):
+    def __init__(self, role_id: int, vendor_id: int | None = None):
         details = {"role_id": role_id}
         if vendor_id:
             details["vendor_id"] = vendor_id
@@ -153,8 +157,8 @@ class InvalidRoleException(ValidationException):
     def __init__(
         self,
         message: str = "Invalid role data",
-        field: Optional[str] = None,
-        details: Optional[Dict[str, Any]] = None,
+        field: str | None = None,
+        details: dict[str, Any] | None = None,
     ):
         super().__init__(
             message=message,
@@ -170,8 +174,8 @@ class InsufficientTeamPermissionsException(AuthorizationException):
     def __init__(
         self,
         required_permission: str,
-        user_id: Optional[int] = None,
-        action: Optional[str] = None,
+        user_id: int | None = None,
+        action: str | None = None,
     ):
         details = {"required_permission": required_permission}
         if user_id:
@@ -208,8 +212,8 @@ class TeamValidationException(ValidationException):
     def __init__(
         self,
         message: str = "Team operation validation failed",
-        field: Optional[str] = None,
-        validation_errors: Optional[Dict[str, str]] = None,
+        field: str | None = None,
+        validation_errors: dict[str, str] | None = None,
     ):
         details = {}
         if validation_errors:
@@ -229,8 +233,8 @@ class InvalidInvitationDataException(ValidationException):
     def __init__(
         self,
         message: str = "Invalid invitation data",
-        field: Optional[str] = None,
-        details: Optional[Dict[str, Any]] = None,
+        field: str | None = None,
+        details: dict[str, Any] | None = None,
     ):
         super().__init__(
             message=message,
@@ -255,7 +259,7 @@ class InvalidInvitationTokenException(ValidationException):
     def __init__(
         self,
         message: str = "Invalid or expired invitation token",
-        invitation_token: Optional[str] = None,
+        invitation_token: str | None = None,
     ):
         details = {}
         if invitation_token: