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```python
# AI Dev Tool: PostgreSQL Vector Search Extension with Hono Cloudflare Workers
# Description: A production-ready starter boilerplate for building scalable vector search applications
# using PostgreSQL and Hono Cloudflare Workers.

import os
import psycopg2
import numpy as np
from hono import Hono
from typing import List, Dict

# Define the PostgreSQL connection parameters
POSTGRES_HOST = os.environ.get('POSTGRES_HOST')
POSTGRES_DB = os.environ.get('POSTGRES_DB')
POSTGRES_USER = os.environ.get('POSTGRES_USER')
POSTGRES_PASSWORD = os.environ.get('POSTGRES_PASSWORD')

# Define the Hono Cloudflare Workers configuration
HONO_WORKER_URL = os.environ.get('HONO_WORKER_URL')
HONO_WORKER_TOKEN = os.environ.get('HONO_WORKER_TOKEN')

# Create a PostgreSQL connection
def create_postgres_connection() -> psycopg2.Connection:
    """
    Creates a connection to the PostgreSQL database.

Returns:
        psycopg2.Connection: The PostgreSQL connection object.
    """
    return psycopg2.connect(
        host=POSTGRES_HOST,
        database=POSTGRES_DB,
        user=POSTGRES_USER,
        password=POSTGRES_PASSWORD
    )

# Create a Hono Cloudflare Workers client

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