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/staple/螺蛳粉.md

@@ -0,0 +1,50 @@
+# How to Make Luosifen
+
+Authentic Luosifen is not smelly!
+
+Estimated Cooking Difficulty: ★
+
+## Essential Ingredients and Tools
+
+> For the sake of home cooking, making Luosifen from scratch using river snails, sour bamboo shoots, etc., is not practical. Therefore, this recipe is based on packaged Luosifen.
+
+### Ingredients
+
+- One package of packaged Luosifen, which should include:
+  - Rice noodles
+  - River snail meat pack (may be included in the topping pack)
+  - Soup base pack
+  - Topping packs such as sour bamboo shoots, peanuts, fried tofu skin, wood ear mushrooms, etc.
+  - Seasoning packs such as vinegar and chili oil
+
+### Tools
+
+- Pot
+
+- Induction cooker / Stove
+
+- A pair of chopsticks
+
+## Calculations
+
+- Based on personal experience, one package of packaged Luosifen is sufficient for one person's meal (even though it looks like a large pack).
+- Water: 1L
+
+## Instructions
+
+- Add water to the pot and bring it to a boil.
+- Add the rice noodles and cook for 3-5 minutes, stirring with chopsticks to prevent the noodles from sticking together.
+- Add the soup base pack, adjusting to your taste.
+- Add some topping packs, such as wood ear mushrooms, peanuts, and river snails (these toppings need to simmer for a while to absorb the flavor).
+- Add the seasoning packs, adjusting to your taste.
+- Stir and then transfer the contents into a bowl.
+- Add the remaining topping packs, such as sour bamboo shoots and fried tofu skin (these toppings are not suitable for soaking in the soup for too long).
+- Enjoy your meal.
+
+## Additional Notes
+
+- If you prefer chewier noodles, reduce the cooking time for the noodles in the second step.
+- If you want to add a fried egg to your Luosifen, please refer to the fried egg tutorial.
+- Choose your toppings according to your personal preference.
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull request.