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/soup/金针菇汤.md

@@ -0,0 +1,31 @@
+# How to Make Enoki Mushroom Soup
+
+Estimated Cooking Difficulty: ★★
+
+## Essential Ingredients and Tools
+
+- Enoki mushrooms
+- Eggs (optional)
+
+## Measurements
+
+Per serving:
+
+- Enoki mushrooms: 400-500 grams (one standard bag from the market is sufficient)
+- Salt: 15 grams
+- MSG: 5 grams
+
+## Instructions
+
+1. Separate the enoki mushrooms by hand as much as possible to avoid them getting stuck in your teeth. Wash and set aside.
+2. Cut the enoki mushrooms into segments using a kitchen or fruit knife. You can adjust the length according to your preference, but keep it under 5 cm.
+3. Place the enoki mushrooms in a pot and add enough water to cover them by about 1.1 times their height. Bring to a boil and **wait for 3 minutes**.
+4. Add MSG and salt, then stir.
+5. Continue heating for about 30 seconds, then turn off the heat and plate.
+
+## Additional Tips
+
+- If you prefer adding eggs to the soup, pour in beaten egg mixture after the water boils in step 3.
+- After plating, you can add 3-4 drops of sesame oil (or perilla oil) for extra aroma.
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull request.