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/meat_dish/香辣鸡爪煲/香辣鸡爪煲.md

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+# How to Make Spicy Chicken Feet Pot
+
+![Spicy Chicken Feet Pot](./result2.jpg)
+
+The Spicy Chicken Feet Pot has a chewy, bouncy texture, with a rich and spicy flavor that leaves a lasting aftertaste.
+
+Estimated Cooking Difficulty: ★★★★
+
+## Essential Ingredients and Tools
+
+- Chicken feet
+- Green onions
+- Ginger
+- Cooking wine
+- Bay leaves
+- Star anise
+- Light soy sauce
+- Dark soy sauce
+- Garlic
+- Millet peppers
+- Chili powder (optional)
+- Oyster sauce
+- Five-spice powder
+- Salt
+- Chicken bouillon
+
+## Measurements
+
+- 500g chicken feet
+- 3 bay leaves
+- 3 star anise
+- 6 millet peppers
+- 10g minced ginger
+- 10g minced garlic
+- 2 green onions
+- 3g oyster sauce
+
+## Instructions
+
+- Trim the nails off the chicken feet. If you bought only the foot pads, cut them in half. If using whole chicken feet, remove the bones. Rinse thoroughly with clean water.
+- Place the chicken feet in a pot with cold water. Add ginger, green onions, and cooking wine to blanch. Once the water boils, skim off the foam.
+- Add bay leaves, star anise, light soy sauce, and dark soy sauce. Cover and simmer on low heat for 30 minutes.
+  ![Simmering Chicken Feet](./result1.jpg)
+- Remove the chicken feet and reserve one bowl of the chicken broth for later use.
+- Heat oil in a wok over low heat. Stir-fry the minced ginger, minced garlic, and millet peppers until fragrant. Add chili powder if you prefer it spicier. Add light soy sauce, dark soy sauce, oyster sauce, five-spice powder, and salt. Stir-fry until a savory sauce aroma is released.
+- Add the chicken feet, season with a little salt, and stir-fry for 1-2 minutes. Then pour in the reserved chicken broth, stirring continuously while cooking.
+- Add chicken bouillon for extra freshness, sprinkle with chopped green onions, mix well, and serve.
+
+Note: If you wish to add side dishes, do so after frying the base ingredients but before adding the chicken feet.
+
+## Additional Information
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull request.