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```python
# AI Dev Tool: Cloudflare Worker Hono API Template with PostgreSQL Vector Search Extension
# ==============================================================================
# This is a high-demand production starter boilerplate for building micro-SaaS applications
# using Cloudflare Workers, Hono, and PostgreSQL Vector Search Extension.

import os
import json
from typing import Dict, List
from pydantic import BaseModel
from hono import Hono
from cloudflare import Worker
from psycopg2 import connect

# Define the PostgreSQL connection settings
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 API settings
HONO_API_KEY = os.environ.get('HONO_API_KEY')
HONO_API_SECRET = os.environ.get('HONO_API_SECRET')

# Define the Cloudflare Worker settings
CLOUDFLARE_ACCOUNT_ID = os.environ.get('CLOUDFLARE_ACCOUNT_ID')
CLOUDFLARE_API_TOKEN = os.environ.get('CLOUDFLARE_API_TOKEN')

# Define the PostgreSQL Vector Search Extension settings
VECTOR_SEARCH_EXTENSION = os.environ.get('VECTOR_SEARCH_EXTENSION')

# Create a PostgreSQL connection

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