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```python
# AI Dev Tool: PostgreSQL Vector Search Extension with FastAPI and Hono
# =====================================================================================
# This is a production-ready developer code asset that integrates PostgreSQL Vector Search
# Extension with FastAPI and Hono. It provides a scalable and efficient API for searching
# vectors in a PostgreSQL database.

# Import required libraries
from fastapi import FastAPI, HTTPException
from fastapi.responses import JSONResponse
from fastapi.requests import Request
from fastapi.middleware.cors import CORSMiddleware
from hono import Hono
from psycopg2 import connect, Error
from psycopg2.extras import DictCursor
from typing import List, Dict

# Initialize FastAPI app
app = FastAPI()

# Initialize Hono
hono = Hono()

# Define database connection settings
DB_HOST = "localhost"
DB_NAME = "vector_search"
DB_USER = "postgres"
DB_PASSWORD = "password"

# Define CORS settings
origins = [
    "http://localhost:8000",
    "http://localhost:3000",
]

# Configure CORS middleware
app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],

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