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## PR Checklist

- [ ] The PR title follows our guidelines: https://github.com/NativeScript/NativeScript/blob/master/CONTRIBUTING.md#commit-messages.
- [ ] There is an issue for the bug/feature this PR is for. To avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it.
- [ ] You have signed the [CLA](http://www.nativescript.org/cla).
- [ ] All existing tests are passing: https://github.com/NativeScript/NativeScript/blob/master/DevelopmentWorkflow.md#running-unit-tests.
- [ ] Tests for the changes are included - https://github.com/NativeScript/NativeScript/blob/master/WritingUnitTests.md.

## What is the current behavior?
The platform currently lacks an "AI Doctor Assistant" feature to aid in pre-consultation data collection and post-consultation patient engagement for TCM practitioners.

## What is the new behavior?
This PR introduces a high-fidelity interactive prototype for the "Doctor AI Assistant" feature, designed for a TCM practitioner enablement platform. It implements the following core functionalities and pages:

*   **Doctor Homepage (`home.html`)**: Features a prominent doctor brand, an entry point for AI consultation, and a patient informed consent checkbox.
*   **AI Smart Intake Form (`intake.html`)**: Provides a step-by-step, chat-dialogue-style guided patient intake process to collect symptoms and medical history.
*   **Multimedia Capture (`capture.html`)**: Guides patients through standardized tongue and face photo collection with real-time instructions and basic quality control.
*   **AI Collected Summary (`summary.html`)**: Presents a structured summary of AI-collected patient information (symptoms, photos, lifestyle) for the doctor's review, clearly marked as "for reference only."
*   **Post-Consultation Chat (`postchat.html`)**: Simulates a chat interface with AI auto-reply for common questions, identification of urgent issues, and a toggle for human doctor intervention.

The prototype adheres to a professional medical style with TCM elements, uses HTML, Tailwind CSS, and FontAwesome, and simulates a WeChat mini-program interface. All AI-generated content is explicitly disclaimed as "for reference only," emphasizing the doctor's final diagnosis. The pages are integrated via an `iframe` with `postMessage` for navigation and state management.

Implements new feature: Doctor AI Assistant Prototype.