feat: fix auth, provider health checks, search, and redesign UI

- Fix register/login: dict-style access on UserTable ORM objects
- Fix HTMX auth: inject JWT token in all HTMX request headers
- Fix FS7 search: use DLE AJAX endpoint /engine/ajax/search.php
- Fix ZT search: use ?p=series&search=QUERY (not DLE format)
- Fix provider health: load hardcoded providers + domain manager
- Add self.id to all anime/series providers
- Redesign homepage: Netflix-style horizontal scroll cards (.hc)
- Redesign search results: grouped by title, poster + synopsis + 3 buttons
- Add Télécharger dropdown: season download + episode picker
- Fix navbar CSS: restore .tabs flex layout, remove orphan rules
- Fix HTMX spinner: remove inline display:none, use CSS indicator
- Add AGENTS.md files across project for developer documentation

app/routers/router_settings.py

@@ -1,6 +1,7 @@
 """Application settings routes for Ohm Stream Downloader API"""
+
 import json
-from typing import List, Dict, Any
+from typing import List, Dict, Any, Optional
 from fastapi import APIRouter, Depends, HTTPException, Request, Response
 from fastapi.templating import Jinja2Templates
 from sqlmodel import Session, select
@@ -8,7 +9,7 @@ from sqlmodel import Session, select
 from app.database import get_session
 from app.models.auth import User, UserTable
 from app.models.settings import AppSettings, AppSettingsTable, AppSettingsUpdate
-from app.routers.router_auth import get_current_user_from_token
+from app.routers.router_auth import get_current_user_from_token, get_optional_user
 from app.providers import get_anime_providers, get_series_providers
 from app.providers_manager import providers_manager
 
@@ -19,23 +20,25 @@ templates = Jinja2Templates(directory="templates")
 @router.get("", response_model=AppSettings)
 async def get_settings(
     current_user: User = Depends(get_current_user_from_token),
-    session: Session = Depends(get_session)
+    session: Session = Depends(get_session),
 ):
     """Get current application settings for the user"""
-    statement = select(AppSettingsTable).where(AppSettingsTable.user_id == current_user.id)
+    statement = select(AppSettingsTable).where(
+        AppSettingsTable.user_id == current_user.id
+    )
     settings_obj = session.exec(statement).first()
-    
+
     if not settings_obj:
         # Create default settings if they don't exist
         settings_obj = AppSettingsTable(user_id=current_user.id)
         session.add(settings_obj)
         session.commit()
         session.refresh(settings_obj)
-        
+
     return AppSettings(
         default_lang=settings_obj.default_lang,
         theme=settings_obj.theme,
-        disabled_providers=settings_obj.disabled_providers
+        disabled_providers=settings_obj.disabled_providers,
     )
 
 
@@ -44,61 +47,69 @@ async def update_settings(
     update_data: AppSettingsUpdate,
     response: Response,
     current_user: User = Depends(get_current_user_from_token),
-    session: Session = Depends(get_session)
+    session: Session = Depends(get_session),
 ):
     """Update application settings for the user"""
-    statement = select(AppSettingsTable).where(AppSettingsTable.user_id == current_user.id)
+    statement = select(AppSettingsTable).where(
+        AppSettingsTable.user_id == current_user.id
+    )
     settings_obj = session.exec(statement).first()
-    
+
     if not settings_obj:
         settings_obj = AppSettingsTable(user_id=current_user.id)
         session.add(settings_obj)
-    
+
     if update_data.default_lang is not None:
         settings_obj.default_lang = update_data.default_lang
     if update_data.theme is not None:
         settings_obj.theme = update_data.theme
     if update_data.disabled_providers is not None:
         settings_obj.disabled_providers = update_data.disabled_providers
-        
+
     session.add(settings_obj)
     session.commit()
     session.refresh(settings_obj)
-    
-    response.headers["HX-Trigger"] = json.dumps({"show-toast": {"message": "Paramètres enregistrés", "type": "success"}})
-    
+
+    response.headers["HX-Trigger"] = json.dumps(
+        {"show-toast": {"message": "Paramètres enregistrés", "type": "success"}}
+    )
+
     return settings_obj
 
 
 @router.get("/providers/availability")
 async def get_providers_availability(
     current_user: User = Depends(get_current_user_from_token),
-    session: Session = Depends(get_session)
+    session: Session = Depends(get_session),
 ):
     """Get list of providers with their availability and enabled status"""
     # Get user settings
-    statement = select(AppSettingsTable).where(AppSettingsTable.user_id == current_user.id)
+    statement = select(AppSettingsTable).where(
+        AppSettingsTable.user_id == current_user.id
+    )
     settings_obj = session.exec(statement).first()
     disabled_providers = settings_obj.disabled_providers if settings_obj else []
-    
+
     # Get health status
     health_status = providers_manager.get_all_status()
-    
+
     # Combine anime and series providers
     all_providers = {**get_anime_providers(), **get_series_providers()}
-    
+
     result = []
     for pid, info in all_providers.items():
         status_info = health_status.get(pid, {"status": "unknown"})
-        result.append({
-            "id": pid,
-            "name": info["name"],
-            "icon": info.get("icon", "🎬"),
-            "status": status_info["status"],
-            "enabled": pid not in disabled_providers,
-            "error": status_info.get("error")
-        })
-        
+        result.append(
+            {
+                "id": pid,
+                "name": info["name"],
+                "icon": info.get("icon", "🎬"),
+                "status": status_info["status"],
+                "enabled": pid not in disabled_providers,
+                "error": status_info.get("error"),
+            }
+        )
+
     return result
 
 
@@ -107,16 +118,18 @@ async def toggle_provider(
     provider_id: str,
     response: Response,
     current_user: User = Depends(get_current_user_from_token),
-    session: Session = Depends(get_session)
+    session: Session = Depends(get_session),
 ):
     """Toggle a provider's enabled/disabled status"""
-    statement = select(AppSettingsTable).where(AppSettingsTable.user_id == current_user.id)
+    statement = select(AppSettingsTable).where(
+        AppSettingsTable.user_id == current_user.id
+    )
     settings_obj = session.exec(statement).first()
-    
+
     if not settings_obj:
         settings_obj = AppSettingsTable(user_id=current_user.id)
         session.add(settings_obj)
-        
+
     disabled = settings_obj.disabled_providers
     if provider_id in disabled:
         disabled.remove(provider_id)
@@ -124,33 +137,39 @@ async def toggle_provider(
     else:
         disabled.append(provider_id)
         enabled = False
-        
+
     settings_obj.disabled_providers = disabled
     session.add(settings_obj)
     session.commit()
-    
+
     status_text = "activé" if enabled else "désactivé"
-    response.headers["HX-Trigger"] = json.dumps({"show-toast": {"message": f"Fournisseur {provider_id} {status_text}", "type": "success"}})
-    
+    response.headers["HX-Trigger"] = json.dumps(
+        {
+            "show-toast": {
+                "message": f"Fournisseur {provider_id} {status_text}",
+                "type": "success",
+            }
+        }
+    )
+
     return {"id": provider_id, "enabled": enabled}
 
 
 @router.get("/ui")
 async def get_settings_ui(
     request: Request,
-    current_user: User = Depends(get_current_user_from_token),
-    session: Session = Depends(get_session)
+    current_user: Optional[User] = Depends(get_optional_user),
+    session: Session = Depends(get_session),
 ):
-    """Return the settings UI fragment for HTMX"""
-    # Reuse existing endpoints logic
+    if current_user is None:
+        return templates.TemplateResponse(
+            "components/login_prompt.html", {"request": request}
+        )
+
     settings = await get_settings(current_user, session)
     providers = await get_providers_availability(current_user, session)
-    
+
     return templates.TemplateResponse(
         "components/settings_section.html",
-        {
-            "request": request,
-            "settings": settings,
-            "providers": providers
-        }
+        {"request": request, "settings": settings, "providers": providers},
     )