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/dessert/草莓冰淇淋/草莓冰淇淋.md

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+
+# How to Make Strawberry Ice Cream
+
+Strawberry ice cream is simple yet delicious and can be made in many different variations. This time, we will make a delicious strawberry ice cream using fresh, in-season strawberries that **does not require churning**.
+
+Estimated Cooking Difficulty: ★★
+
+## Essential Ingredients and Tools
+
+- Sweetened condensed milk
+- Strawberries
+- Heavy cream
+- Vanilla extract
+- Ice cream mold (optional)
+
+## Measurements
+
+For one batch:
+
+- Strawberry Syrup:
+  - Strawberries: 500g
+  - Granulated sugar: 45g
+  - Vanilla extract: 1g
+  - Salt: 1g
+- Ice Cream Base:
+  - Vanilla extract: 5g
+  - Salt: 1g
+  - Heavy cream: 6g
+  - Sweetened condensed milk: 400g
+
+## Instructions
+
+- Start by making the strawberry syrup. Wash the strawberries and remove the leafy tops. Cut the strawberries into **5mm** pieces. Set aside half of the chopped strawberries to fold into the ice cream later.
+- Place the remaining chopped strawberries and sugar into a saucepan. Cook over medium heat, stirring occasionally, until the strawberries release their juices and form a syrup in the pan.
+- Let the strawberries simmer in the syrup, stirring occasionally, until they break down and lose their shape, and the syrup thickens slightly.
+- The syrup is ready when it holds its shape for **3 seconds** after being drizzled off the spoon. Remove from heat and stir in the vanilla and salt. Set the strawberry syrup aside to cool.
+- While the syrup cools, prepare the ice cream base. In a bowl, combine the sweetened condensed milk, heavy cream, vanilla extract, and salt. Whisk the mixture with a hand mixer until it becomes light and fluffy and forms soft peaks.
+- Fold the reserved chopped fresh strawberries into the ice cream base. Transfer the base into a freezer-safe container. Drizzle the cooled strawberry syrup over the ice cream and gently swirl it into the mixture.
+- Cover the ice cream and freeze for **8 hours**, then scoop and serve.
+
+## Additional Notes
+
+- Exercise caution during preparation to avoid cuts or burns.
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull Request.