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/上汤娃娃菜/上汤娃娃菜.md

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+# Recipe for Baby Cabbage in Broth
+
+Baby Cabbage in Broth Recipe (Vegetarian, Diet Meal)
+
+Estimated Cooking Difficulty: ★★★
+
+## Essential Ingredients and Tools
+
+- Baby cabbage
+- Century egg
+- Luncheon meat (or ham sausage)
+- Green onion
+- Ginger
+- Garlic
+- Salt
+- Sugar
+- Starch
+
+## Measurements
+
+Note: This recipe serves 2-4 people.
+
+- Baby cabbage: 700g
+- Enoki mushrooms: 10g (optional; omit if you dislike them 😂)
+- Century egg: 1 (optional)
+- Luncheon meat or ham sausage: equivalent amount
+
+## Instructions
+
+- Wash the baby cabbage and cut it vertically into sections.
+- Cut 3g of green onion into small pieces. Slice 10g of garlic. Cut 10g of ginger into small slices.
+- Dice the century egg and the luncheon meat (or ham sausage) into 1cm cubes.
+- Wash the enoki mushrooms and separate the strands.
+- Bring water to a boil, blanch the baby cabbage for 10 seconds, then remove and drain.
+- Heat a wok with a small amount of oil, swirl to coat the pan, then pour out the excess oil. Add a little fresh oil.
+- Reduce heat to low, add the green onion, ginger, and garlic, and stir-fry until fragrant.
+- Add 300g of water (enough to cover the cabbage), then add the baby cabbage, enoki mushrooms, and luncheon meat.
+- Add oyster sauce, sugar, salt, and MSG. Bring to a boil.
+- Simmer for 3 minutes. Once boiling, plate the dish: arrange the baby cabbage, place the century egg on top, and pour the broth over it.
+- ![Baby Cabbage in Broth](./上汤娃娃菜.png)
+
+    My photography skills are limited, but it tastes great.
+
+## Additional Notes
+
+If you encounter any issues or have suggestions for improvement while following this guide, please open an Issue or submit a Pull request.