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/老干妈拌面.md

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+# How to Make Lao Gan Ma Noodles
+
+Estimated Cooking Difficulty: ★
+
+## Essential Ingredients and Tools
+
+* Noodles
+* Lao Gan Ma
+* Soy Sauce
+
+## Calculations
+
+Determine how many servings you plan to make before starting. One serving is exactly enough for 1 person.
+
+Total Quantities:
+
+* Water: 1 liter
+* Noodles: 120g * number of servings
+* Lao Gan Ma: 15ml * number of servings
+* Soy Sauce: 5ml * number of servings
+
+## Instructions
+
+* Pour water into a pot and bring it to a boil.
+* Add the noodles evenly into the pot.
+* Stir occasionally during cooking to prevent the noodles from clumping together.
+* When you lift a strand of noodles with chopsticks and it slides off naturally, wait another 30 seconds before turning off the heat.
+* Transfer the noodles into a bowl.
+* Add the specified amounts of Lao Gan Ma and soy sauce.
+* Mix the noodles, Lao Gan Ma, and soy sauce thoroughly with chopsticks.
+* Enjoy.
+
+## Additional Notes
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull Request.