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/烤箱版巴斯克芝士蛋糕/烤箱版巴斯克芝士蛋糕.md

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+# Oven-Baked Basque Cheesecake Recipe
+
+![Finished Product](./Oven-Baked_Basque_Cheesecake.jpg)
+
+The top of the finished cake may not be as dark as shown in online images because your oven might lack convection or top-only heating functions. If your oven has these features, you can use them to achieve better browning.
+
+Estimated Cooking Difficulty: ★★
+
+## Essential Ingredients and Tools
+
+- Cream cheese: 212g (This is the weight of one block, which is convenient; the original recipe uses 250g)
+- Granulated sugar: 60g
+- Eggs: 2 large
+- Egg yolks: 1 large
+- Heavy cream: 120g
+- Cake flour: 10g
+
+Optional (Chocolate Flavor)
+
+- Chocolate: 38g (I have only tried melting regular chocolate and mixing it in during the heavy cream step)
+
+## Notes
+
+The ingredients below are for a 7-inch round pan. The original recipe uses a 6-inch round pan.
+
+## Instructions
+
+- Soften the cream cheese by microwaving for 10 seconds, then another 10 seconds.
+- Add granulated sugar to the cream cheese and beat with an electric mixer until smooth.
+- Add 2 whole eggs and 1 egg yolk, mixing until well combined.
+- Add heavy cream and mix until smooth.
+- Add cake flour and mix until just combined.
+- Bake at 220°C (425°F) for 20-25 minutes (I usually bake for 20 or 22 minutes).
+- Let it cool completely, then refrigerate overnight for best results.
+
+## Additional Tips
+
+- It is normal for the cake to jiggle slightly when it comes out of the oven. The texture is not at its best while warm; it must be chilled to taste its best!
+- Reference: Xia Chu Fang - Basque Cheesecake 'The Simplest Cake' Zero Failure 🔥 Cheese Lovers
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull request.