Add initial implementation of FastAPI application with email service

Dockerfile

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+# Read the doc: https://huggingface.co/docs/hub/spaces-sdks-docker
+# you will also find guides on how best to write your Dockerfile
+
+FROM python:3.9
+
+RUN useradd -m -u 1000 user
+USER user
+ENV PATH="/home/user/.local/bin:$PATH"
+
+WORKDIR /app
+
+COPY --chown=user ./requirements.txt requirements.txt
+RUN pip install --no-cache-dir --upgrade -r requirements.txt
+
+COPY --chown=user . /app
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]

app.py

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+from fastapi import FastAPI
+from service import EmailService
+
+app = FastAPI()
+
+
+@app.post("/check")
+async def check_email_service(
+):
+    try:
+        email_service = EmailService()
+        await email_service.send_test_email("dhanush@yuvabe.com")
+        return {
+            "status_code": 200,
+            "message": "Test email sent successfully.",
+            "data": None,
+        }
+    except Exception as e:
+        return {
+            "status_code": 500,
+            "message": f"Failed to send test email: {e}",
+            "data": None,
+        }

requirements.txt

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+fastapi
+uvicorn[standard]
+aiosmtplib

service.py

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+from email.message import EmailMessage
+import aiosmtplib
+import os
+
+
+class EmailService:
+    def __init__(self, mail_config: dict | None = None):
+        self.mail_config = mail_config or {
+            "hostname": "smtp.gmail.com",
+            "port": 587,
+            "username": "hariprasath137@gmail.com",
+            "password": os.getenv("EMAIL_PASSWORD"),
+            "start_tls": True,
+        }
+
+    async def send_test_email(self, recipient: str):
+        try:
+
+            message = EmailMessage()
+            message["From"] = f"KittyKat Agents <{self.mail_config['username']}>"
+            message["To"] = recipient
+            message["Subject"] = "Test Email from KittyKat Agents"
+            message.set_content(
+                "This is a test email to verify the email service is operational.")
+            message.add_alternative("<h1>Test</h1>", subtype="html")
+
+            await aiosmtplib.send(
+                message,
+                **self.mail_config,
+            )
+        except Exception as e:
+            print(f"Error sending test email: {e}")
+            raise e