fix: Fix NameError in root endpoint and update API version to 1.1.0

- Fix undefined API_TITLE and API_VERSION constants in root endpoint
- Use settings.api_title and settings.api_version instead
- Update default API version from 1.0.0 to 1.1.0 in config.py

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

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

Author: mmaudet

app.py

@@ -619,8 +619,8 @@ async def root():
     Returns basic API information and usage examples
     """
     return {
-        "api": API_TITLE,
-        "version": API_VERSION,
+        "api": settings.api_title,
+        "version": settings.api_version,
         "documentation": {
             "swagger": "/docs",
             "redoc": "/redoc",

config.py

@@ -43,7 +43,7 @@ class Settings(BaseSettings):
     # API Configuration
     # ==========================================
     api_version: str = Field(
-        default="1.0.0",
+        default="1.1.0",
         description="API version number"
     )
     api_title: str = Field(