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/vegetable_dish/蚝油三鲜菇/蚝油三鲜菇.md

@@ -0,0 +1,64 @@
+# How to Make Oyster Sauce Mixed Mushrooms
+
+This oyster sauce mushroom dish can be prepared in just a few minutes. The mushrooms are silky, tender, flavorful, and delicious.
+
+Estimated Cooking Difficulty: ★★★
+
+## Essential Ingredients and Tools
+
+* Shiitake mushrooms
+* Crab flavor mushrooms
+* White jade mushrooms
+* Millet peppers
+* Bell peppers
+* Cooking oil
+* Salt
+* Cooking wine
+* Starch
+* Light soy sauce
+* Chicken bouillon
+* Green onions
+* Minced ginger
+* Oyster sauce
+* Broccoli
+
+## Measurements
+
+Per serving:
+
+* Shiitake mushrooms: 2 pieces
+* Crab flavor mushrooms: 30 g
+* White jade mushrooms: 30 g
+* Millet peppers: 1 piece
+* Bell peppers: 0.5 pieces
+* Cooking oil: 10 ml
+* Table salt: 5 g
+* Cooking wine: 2 ml
+* Starch: 10 g
+* Light soy sauce: 10 ml
+* Chicken bouillon: 3 g
+* Green onions: 0.5 pieces
+* Minced ginger: 1 clove
+* Oyster sauce: 5 ml
+* Boiling water: 350 ml
+* Broccoli: 100 g
+
+## Instructions
+
+* Remove the root ends and dirt from the crab flavor mushrooms and white jade mushrooms, then separate the caps.
+* Slice the shiitake mushrooms (thickness of 0.5-1 cm; thicker slices offer a chewier texture).
+* Pour the starch into a small bowl, add 50 ml of water, and stir until the starch dissolves completely and there are no lumps (creating a slurry). Set aside.
+* Bring water to a boil, add the broccoli, and boil in clear water for 3 minutes. Remove and set aside in a bowl.
+* Wash the pot, bring water to a boil, add 5 g of table salt, then add the crab flavor mushrooms, white jade mushrooms, and shiitake mushrooms. Boil for 1 minute.
+* After 1 minute, remove the mushrooms and drain the water.
+* Heat oil in the pot. When small bubbles appear in the oil, add the minced ginger, millet peppers, and bell peppers, and stir-fry for 30 seconds.
+* Add the mixed mushrooms, then sequentially add the light soy sauce, oyster sauce, and chicken bouillon. Stir-fry evenly, then pour in the starch slurry.
+* Cook over medium heat until the sauce thickens. Add cooking wine and chopped green onions, then remove from heat.
+* Arrange the broccoli on the dish.
+
+![Example finished dish](./1.jpeg)
+![Example finished dish](./2.jpeg)
+
+## Additional Content
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull request.