Refine health checks and add polling animation

app/backend/features/health/__init__.py

@@ -1 +0,0 @@
-"""Health check feature."""

app/backend/features/health/router.py

@@ -1,23 +0,0 @@
-"""Health endpoints."""
-
-from fastapi import APIRouter, Depends
-
-from core.config import Settings, get_settings
-from features.health.schemas import HealthResponse
-
-router = APIRouter(prefix="/health", tags=["health"])
-
-
-def build_health_payload(settings: Settings) -> HealthResponse:
-    """Build health response payload."""
-    return HealthResponse(
-        status="ok",
-        service=settings.service_name,
-        environment=settings.environment,
-    )
-
-
-@router.get("/", response_model=HealthResponse)
-def health(settings: Settings = Depends(get_settings)) -> HealthResponse:
-    """Return lightweight health status."""
-    return build_health_payload(settings)

app/backend/features/health/schemas.py

@@ -1,9 +0,0 @@
-"""Pydantic schemas for health responses."""
-
-from pydantic import BaseModel, Field
-
-
-class HealthResponse(BaseModel):
-    status: str = Field(default="ok", description="Overall service status.")
-    service: str = Field(default="backend", description="Service name.")
-    environment: str = Field(default="development", description="Runtime environment.")