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/semi-finished/速冻馄饨.md

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+# How to Prepare Frozen Wontons
+
+Wontons are a traditional Chinese folk noodle dish originating from China. [Dumplings](./frozen-dumplings.md) evolved from them, characterized by thin wrappers, tender fillings, clear broth, and fresh flavor.
+
+Estimated cooking difficulty: ★★
+
+## Required Ingredients and Tools
+
+* A bag of frozen wontons (not expired; preferably with a seasoning packet included)
+* Rice cooker (Xiaomi smart rice cooker recommended)
+* Salt (if the wontons do not include a seasoning packet)
+* Chicken bouillon powder (if the wontons do not include a seasoning packet)
+* Pepper powder (if the wontons do not include a seasoning packet)
+* Sesame oil (if the wontons do not include a seasoning packet)
+* 1 stalk of cilantro (optional)
+
+> Note: Cooking methods for frozen wontons may vary depending on the equipment used. This guide only covers the method using a "rice cooker."
+
+## Calculations
+
+* Typically, one person consumes 12–20 wontons per meal.
+* When placing all wontons in the rice cooker, add water to a level that just covers the wontons, then multiply that amount by 2–3 times (approximately 600ml of water is needed for one person's portion).
+
+## Instructions
+
+### Boiling the Water
+
+* Pour water into the rice cooker and run the "Stew" or "Cook" mode for 35 minutes. At this point, open the lid to confirm the water is boiling.
+
+### Adding the Wontons
+
+* Carefully place the frozen wontons into the water, being careful not to get burned.
+* You may rinse the wontons with water briefly before adding them to the rice cooker.
+* If the wontons come with a seasoning packet, add it to the water at this stage.
+
+### Cooking the Wontons
+
+* Close the lid and run the same "Stew" or "Cook" mode for 20 minutes.
+
+### Serving the Wontons
+
+* Ladle all the wontons and enough water to cover them into a bowl.
+* If no seasoning packet was added earlier, adjust the taste by adding salt, chicken bouillon powder, pepper powder, and sesame oil according to your preference.
+* You may also sprinkle 5–8 cilantro leaves on top for garnish (suitable only for those who do not mind the taste of cilantro).
+
+## Additional Tips
+
+* After serving, you can also add a poached egg ([Sunny-side-up Egg](../../dishes/breakfast/sunny-side-up-egg.md)) to enjoy together.
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull request.