Add English translations for all 379 recipe and tip files

Use dotlang AI translation (aiursoft-instruct:latest via Ollama) to
translate all Chinese content to English under en/ subfolder:
- en/dishes/: all recipe categories (aquatic, breakfast, condiment,
  dessert, drink, meat_dish, semi-finished, soup, staple, vegetable_dish)
- en/tips/: learn/ and advanced/ cooking guides
- en/README.md, en/CONTRIBUTING.md, en/CODE_OF_CONDUCT.md

The mkdocs-static-i18n plugin (docs_structure: folder) serves Chinese
at the root and English at /en/, with a language switcher in the UI.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

en/dishes/drink/砂糖椰子冰沙/砂糖椰子冰沙.md

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+# How to Make Sugar Coconut Slush
+
+![alt text](Sugar Coconut Slush-1.jpg)
+
+Sugar Coconut Slush is an extremely quick and convenient drink to make. If the right ingredients are chosen, it offers a rich texture. However, the preparation process is quite noisy, making it best suited for making at home during the day as an afternoon tea treat.
+
+Estimated Cooking Difficulty: ★
+
+## Essential Ingredients and Tools
+
+- Bottled coconut juice (preferably with a wide mouth)
+- Coffee sugar (yellow coarse granules)
+
+## Calculations
+
+The ideal portion size for slush depends largely on its melting rate. A 300g batch of slush frozen at -18°C (0°F) will typically last about 30 minutes at room temperature.
+
+Per serving:
+
+- 500ml bottled coconut juice
+- 10g coffee sugar (two packets of Taikoo coffee sugar)
+- Chopped nuts (optional)
+
+## Instructions
+
+- Pour out 200ml from the 500ml bottle of coconut juice, then immediately tighten the cap securely.
+- Place the bottle in the freezer and freeze for at least 10 hours.
+- Remove the bottle from the freezer. Once you confirm the coconut juice inside is completely frozen, vigorously shake or tap the bottle against hard surfaces such as a wall corner, the back of a chair, or a table edge. (Please ensure the surface will not be damaged by this process.)
+- Continue shaking or tapping until the frozen coconut juice transforms into a slush consistency. Then, open the cap and pour out the slush.
+- Evenly sprinkle coffee sugar or chopped nuts over the top of the slush.
+- Serve and enjoy.
+
+## Additional Notes
+
+- In the steps above, the bottled coconut juice can be frozen in advance, but it should not be stored for more than 7 days to avoid the risk of spoilage.
+
+If you encounter any issues or have suggestions for improving the process while following this guide, please submit an Issue or Pull Request.