FindQuery doesn't support chaining .find() calls for dynamic query building

[abrookins]

Description

FindQuery objects don't support chaining .find() calls, which is a common pattern users expect from ORMs like Django. This leads to AttributeError and can be confusing.

Steps to Reproduce

from aredis_om import HashModel, Field, Migrator
import asyncio

class Product(HashModel, index=True):
    name: str = Field(index=True)
    category: str = Field(index=True)
    price: float = Field(index=True)

async def main():
    await Migrator().run()
    
    # This pattern feels natural but doesn't work:
    query = Product.find(Product.category == "electronics")
    query = query.find(Product.price > 100)  # ❌ AttributeError
    results = await query.all()

asyncio.run(main())

Error

AttributeError: 'FindQuery' object has no attribute 'find'

Expected Behavior

Users familiar with Django or SQLAlchemy expect to be able to chain filter calls:

# Django-style (what users expect):
query = Product.find(Product.category == "electronics")
query = query.find(Product.price > 100)
query = query.find(Product.in_stock > 0)
results = await query.all()

Current Workarounds

1. Use & operator to combine expressions

results = await Product.find(
    (Product.category == "electronics") & (Product.price > 100)
).all()

2. Pass multiple expressions to find()

results = await Product.find(
    Product.category == "electronics",
    Product.price > 100
).all()

3. Build a list of filters and unpack

filters = []
if category:
    filters.append(Product.category == category)
if min_price:
    filters.append(Product.price >= min_price)

if filters:
    results = await Product.find(*filters).all()
else:
    results = await Product.find().all()

Proposal

Either:

1. Add .find() method to FindQuery - Allow chaining like Django's QuerySet
2. Add .filter() method to FindQuery - Alternative name that adds conditions
3. Document the correct patterns prominently - If chaining isn't supported, make the correct patterns very visible in docs

Impact

This is a common stumbling block when building dynamic queries (e.g., in API endpoints with optional filters). The workarounds work but aren't discoverable without reading source code or hitting the error.

Environment

• redis-om version: 1.0.0 (current main branch)
• Python version: 3.12

[XChikuX]

Internally, this should just be the 'OR' ( | ) operator I guess.