Add OpenClaw integration

[Copilot]

Adds OpenClaw as a session-based conversational AI platform integration alongside the existing ManyChat, BotBuilders, and MoltBook integrations.

Backend

• app/integrations/openclaw.py — OpenClawIntegration class with HMAC-SHA256 webhook signature verification (X-OpenClaw-Signature), Pydantic models for messages/sessions/responses, and async methods for the full session lifecycle
• app/routes/openclaw.py — FastAPI router at /integrations/openclaw/ exposing: POST /webhook, POST /send-message, POST /session/create, GET /session/{id}, POST /session/update, POST /session/close, GET /session/{id}/history
• app/settings.py — openclaw_api_key and openclaw_webhook_secret settings
• app/main.py — Router registered alongside other integrations

Config & Docs

• backend/.env.example — OPENCLAW_API_KEY / OPENCLAW_WEBHOOK_SECRET entries
• INTEGRATIONS.md — Full endpoint reference and usage examples

Example

from app.integrations.openclaw import OpenClawIntegration

integration = OpenClawIntegration(api_key="...", webhook_secret="...")

# Create action response for downstream processing
response = integration.create_action_response(
    action="transfer_funds",
    parameters={"amount": 100, "currency": "USD"},
    session_id="sess_123"
)

Original prompt

Add OpenClaw

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