feat: add project scaffolding workflow and initialization guide

HOWTO_INITIALIZE.md

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+# `HOWTO_INITIALIZE.md`
+
+This repository is a **Dynamic Template**. Instead of manually deleting files or renaming folders, use the integrated **Gitea Actions** to scaffold your specific environment.
+
+## 🚀 Getting Started
+
+Follow these steps to initialize your project structure, documentation, and licensing:
+
+1. **Navigate to Actions:** Click on the **Actions** tab at the top of this repository.
+2. **Select Workflow:** On the left sidebar, select **"Project Scaffolding (Advanced)"**.
+3. **Run Workflow:** Click the **"Run workflow"** dropdown menu on the right.
+
+### ⚙️ Configuration Options
+
+| Input | Description |
+| --- | --- |
+| **Confirm Overwrite** | **Mandatory.** You must check this box to allow the script to modify the repository. |
+| **Dry Run** | **Default: Enabled.** Runs the script in simulation mode. Check the logs to see what *would* happen without making changes. |
+| **Project Language** | Select your stack (Python, Node, C++, etc.) to fetch the appropriate `.gitignore` and boilerplate. |
+
+---
+
+## 🛡️ Safety Features
+
+### The Safety Switch
+
+To prevent accidental data loss on existing projects, the automation will **fail immediately** unless the `confirm_overwrite` checkbox is active. This ensures that a "misclick" in the UI doesn't wipe your `README.md`.
+
+### Dry Run Mode
+
+It is highly recommended to run the workflow with **Dry Run** enabled first.
+
+* **In Dry Run:** The action logs will display `[DRY RUN] Would execute: mkdir -p src`.
+* **In Production:** Once you are satisfied with the simulated output, uncheck **Dry Run** and run the workflow again to commit the files to `main`.
+
+---
+
+## 📂 Standardized Structure
+
+Once initialized, your repository will inherit a hierarchy based on the structure you chose from. If you are unsure about your choice, use the Dry Run mode.
+
+---