Migrate from OpenRouter

# OpenRouter naming
"openai/gpt-4"
"anthropic/claude-sonnet-4.5"

# RedPill naming (same format!)
"openai/gpt-5"
"anthropic/claude-sonnet-4.5"

from openai import OpenAI

client = OpenAI(
    base_url="https://openrouter.ai/api/v1",
    api_key=os.environ.get("OPENROUTER_API_KEY"),
)

response = client.chat.completions.create(
    extra_headers={
        "HTTP-Referer": "https://yourapp.com",
        "X-Title": "Your App"
    },
    model="openai/gpt-4",
    messages=[{"role": "user", "content": "Hello"}]
)

from openai import OpenAI

client = OpenAI(
    base_url="https://api.redpill.ai/v1",
    api_key=os.environ.get("API_KEY"),
)

response = client.chat.completions.create(
    model="openai/gpt-5",
    messages=[{"role": "user", "content": "Hello"}]
)

# Get attestation
attestation = requests.get(
    "https://api.redpill.ai/v1/aci/attestation",
    headers={"Authorization": f"Bearer {api_key}"}
)

# confidential (is_tee) models
response = client.chat.completions.create(
    model="z-ai/glm-5",
    messages=[...]
)

# Cryptographic proof, by receipt id or chat id
receipt = requests.get(
    f"https://api.redpill.ai/v1/aci/receipts/{receipt_id}",
    headers={"Authorization": f"Bearer {api_key}"}
)

# Test with RedPill
redpill = OpenAI(
    base_url="https://api.redpill.ai/v1",
    api_key="REDPILL_KEY"
)

# Keep OpenRouter (temporarily)
openrouter = OpenAI(
    base_url="https://openrouter.ai/api/v1",
    api_key="OPENROUTER_KEY"
)

# Compare responses
redpill_resp = redpill.chat.completions.create(...)
openrouter_resp = openrouter.chat.completions.create(...)