style: apply black and isort formatting across entire codebase

- Standardize quote style (single to double quotes)
- Reorder and group imports alphabetically
- Fix line breaks and indentation for consistency
- Apply PEP 8 formatting standards

Also updated Makefile to exclude both venv and .venv from code quality checks.

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

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

app/api/v1/admin/vendor_themes.py

@@ -20,11 +20,8 @@ from sqlalchemy.orm import Session
 from app.api.deps import get_current_admin_api, get_db
 from app.services.vendor_theme_service import vendor_theme_service
 from models.database.user import User
-from models.schema.vendor_theme import (
-    VendorThemeResponse,
-    VendorThemeUpdate,
-    ThemePresetListResponse
-)
+from models.schema.vendor_theme import (ThemePresetListResponse,
+                                        VendorThemeResponse, VendorThemeUpdate)
 
 router = APIRouter(prefix="/vendor-themes")
 logger = logging.getLogger(__name__)
@@ -34,10 +31,9 @@ logger = logging.getLogger(__name__)
 # PRESET ENDPOINTS
 # ============================================================================
 
+
 @router.get("/presets", response_model=ThemePresetListResponse)
-async def get_theme_presets(
-        current_admin: User = Depends(get_current_admin_api)
-):
+async def get_theme_presets(current_admin: User = Depends(get_current_admin_api)):
     """
     Get all available theme presets with preview information.
 
@@ -59,11 +55,12 @@ async def get_theme_presets(
 # THEME RETRIEVAL
 # ============================================================================
 
+
 @router.get("/{vendor_code}", response_model=VendorThemeResponse)
 async def get_vendor_theme(
-        vendor_code: str = Path(..., description="Vendor code"),
-        db: Session = Depends(get_db),
-        current_admin: User = Depends(get_current_admin_api)
+    vendor_code: str = Path(..., description="Vendor code"),
+    db: Session = Depends(get_db),
+    current_admin: User = Depends(get_current_admin_api),
 ):
     """
     Get theme configuration for a vendor.
@@ -93,12 +90,13 @@ async def get_vendor_theme(
 # THEME UPDATE
 # ============================================================================
 
+
 @router.put("/{vendor_code}", response_model=VendorThemeResponse)
 async def update_vendor_theme(
-        vendor_code: str = Path(..., description="Vendor code"),
-        theme_data: VendorThemeUpdate = None,
-        db: Session = Depends(get_db),
-        current_admin: User = Depends(get_current_admin_api)
+    vendor_code: str = Path(..., description="Vendor code"),
+    theme_data: VendorThemeUpdate = None,
+    db: Session = Depends(get_db),
+    current_admin: User = Depends(get_current_admin_api),
 ):
     """
     Update or create theme for a vendor.
@@ -140,12 +138,13 @@ async def update_vendor_theme(
 # PRESET APPLICATION
 # ============================================================================
 
+
 @router.post("/{vendor_code}/preset/{preset_name}")
 async def apply_theme_preset(
-        vendor_code: str = Path(..., description="Vendor code"),
-        preset_name: str = Path(..., description="Preset name"),
-        db: Session = Depends(get_db),
-        current_admin: User = Depends(get_current_admin_api)
+    vendor_code: str = Path(..., description="Vendor code"),
+    preset_name: str = Path(..., description="Preset name"),
+    db: Session = Depends(get_db),
+    current_admin: User = Depends(get_current_admin_api),
 ):
     """
     Apply a theme preset to a vendor.
@@ -184,7 +183,7 @@ async def apply_theme_preset(
 
     return {
         "message": f"Applied {preset_name} preset successfully",
-        "theme": theme.to_dict()
+        "theme": theme.to_dict(),
     }
 
 
@@ -192,11 +191,12 @@ async def apply_theme_preset(
 # THEME DELETION
 # ============================================================================
 
+
 @router.delete("/{vendor_code}")
 async def delete_vendor_theme(
-        vendor_code: str = Path(..., description="Vendor code"),
-        db: Session = Depends(get_db),
-        current_admin: User = Depends(get_current_admin_api)
+    vendor_code: str = Path(..., description="Vendor code"),
+    db: Session = Depends(get_db),
+    current_admin: User = Depends(get_current_admin_api),
 ):
     """
     Delete custom theme for a vendor.