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/aquatic/蛏抱蛋/蛏抱蛋.md

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+# How to Make Razor Clams with Egg
+
+Razor Clams with Egg is a traditional home-style dish popular in the Fuzhou area of Fujian Province.
+
+Estimated Cooking Difficulty: ★★★
+
+## Essential Ingredients and Tools
+
+* Razor Clams
+* Eggs
+* Cooking Oil
+* Onion
+* Cornstarch
+* Light Soy Sauce
+* Chicken Bouillon
+* Cooking Wine
+
+## Quantities
+
+Per serving:
+
+* Razor Clams: 200 g
+* Eggs: 2
+* Cooking Oil: 100 ml
+* Onion: 0.25
+* Cornstarch: 20 g
+* Light Soy Sauce: 5 ml
+* Chicken Bouillon: 5 ml
+* Cooking Wine: 5 ml
+
+## Instructions
+
+* Boil water, add the razor clams, and boil for 2 minutes. Remove them, shell them, and place them in a large bowl.
+* Add onion, light soy sauce, cooking wine, chicken bouillon, and cornstarch to the bowl, then mix thoroughly.
+* Crack 2 eggs into the bowl and continue to mix.
+* Heat oil in a pan, pour in the razor clam mixture, and fry until one side is golden brown. Flip and continue frying.
+
+![Example Dish](./1.jpeg)
+![Example Dish](././2.jpeg)
+![Example Dish](./3.jpeg)
+
+## Additional Notes
+
+* Locals in Fuzhou often use water chestnuts (to cut the richness) and potatoes (to absorb oil). However, due to supply issues during the pandemic, pineapple was used instead.
+* Min cuisine tends to be sweet. If you are not accustomed to sweet flavors, you can omit the white sugar.
+* You can tap the fried meat chunks with a spoon; a hollow sound indicates they are fully cooked.
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull Request.