feat(iit-manager): Add WeChat Official Account integration for patient notifications

Features:
- PatientWechatCallbackController for URL verification and message handling
- PatientWechatService for template and customer messages
- Support for secure mode (message encryption/decryption)
- Simplified route /wechat/patient/callback for WeChat config
- Event handlers for subscribe/unsubscribe/text messages
- Template message for visit reminders

Technical details:
- Reuse @wecom/crypto for encryption (compatible with Official Account)
- Relaxed Fastify schema validation to prevent early request blocking
- Access token caching (7000s with 5min pre-refresh)
- Comprehensive logging for debugging

Testing: Local URL verification passed, ready for SAE deployment

Status: Code complete, waiting for WeChat platform configuration

redcap-docker-dev/.gitattributes

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redcap-docker-dev/.gitignore

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redcap-docker-dev/README.md

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redcap-docker-dev/docker-compose.prod.yml

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redcap-docker-dev/docker-compose.yml

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redcap-docker-dev/env.template

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redcap-docker-dev/scripts/clean-redcap.ps1

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redcap-docker-dev/scripts/create-redcap-password.php

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redcap-docker-dev/scripts/logs-redcap.ps1

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redcap-docker-dev/scripts/reset-admin-password.php

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redcap-docker-dev/scripts/start-redcap.ps1

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redcap-docker-dev/scripts/stop-redcap.ps1

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