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/柠檬水/柠檬水.md

@@ -0,0 +1,37 @@
+# How to Make Lemonade
+
+![Finished Lemonade](./柠檬水.jpg)
+
+Estimated Cooking Difficulty: ★
+
+## Essential Ingredients and Tools
+
+- Ingredients
+  - Lemon
+  - Fruit Honey
+  - Ice (optional)
+- Tools
+  - Shaker
+
+## Measurements
+
+One serving, approximately 500 ml
+
+- Lemon: 40–45 g
+- Fruit Honey: 40–45 g
+- Ice: A few cubes (optional)
+
+## Instructions
+
+- Weigh 40–45 g of lemon and place it in the shaker
+- Cover the shaker and shake vigorously about 10 times
+- Add 40–45 g of fruit honey
+- Add water
+- Shake well to mix
+- Finally, add ice to taste
+
+## Additional Information
+
+- Reference: [Lemonade Tutorial](https://v.douyin.com/TVNTcXDi46I)
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull Request.