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/meat_dish/徽派红烧肉/徽派红烧肉.md

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+# Hui-Style Braised Pork Belly Recipe
+
+Hui-style braised pork belly is a dish made with pork belly and other ingredients.
+
+Estimated Cooking Difficulty: ★★★★
+
+## Essential Ingredients and Tools
+
+* Pork belly
+* White sugar
+* Cooking oil
+* Light soy sauce
+* Oyster sauce
+* Dark soy sauce
+* Ginger slices
+* Garlic cloves
+* Cooking wine
+* Green onion
+* Five-spice powder
+* Salt
+
+## Measurements
+
+Per serving:
+
+* Pork belly 300 g
+* White sugar 100 g
+* Cooking oil 200 g
+* Light soy sauce 10 ml
+* Oyster sauce 5 ml
+* Dark soy sauce 5 ml
+* Ginger slices 2 pieces
+* Garlic cloves 3 cloves
+* Cooking wine 100 ml
+* Green onion 1 stalk
+* Five-spice powder 10 g
+* Salt 10 g
+
+## Instructions
+
+* Cut the pork belly into chunks, each about 2-3 cm in size.
+* Add 150 ml of cooking oil to a pan, add the pork belly, and pan-fry for 2 minutes. Then add salt, stir-fry the pork belly for another 2 minutes, and remove from the pan.
+* Add 50 ml of cooking oil to the pan, add the white sugar, and stir-fry until it turns coffee-colored.
+* Add the pork belly back in, stir-fry for 30 seconds, then add ginger slices and garlic cloves, and stir-fry for another 30 seconds.
+* Add cooking wine, five-spice powder, and green onion. Add water to cover the pork belly, cover the pot, and simmer for 10 minutes.
+* Add light soy sauce, dark soy sauce, and oyster sauce, and simmer on medium heat for 20 minutes.
+* Uncover, increase heat to high to reduce the sauce, and serve.
+
+![Example Finished Dish](./1.jpeg)
+![Example Finished Dish](./2.jpeg)
+
+## Additional Notes
+
+* The green onion should be used whole; do not chop it.
+* The purpose of adding salt in step 2 is to lock in the pork belly's fat.
+* During the preparation process, some pork belly was parboiled and then processed along with the unparboiled portion. It was found that the unparboiled pork belly had a firmer, bouncier texture.
+
+If you encounter any issues or have suggestions for improving the process while following this guide, please submit an Issue or Pull request.