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/dessert/酸奶意式奶冻/酸奶意式奶冻.md

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+# How to Make Yogurt Panna Cotta
+
+![Example finished dish](./yogurt-panna-cotta.png)
+
+Panna cotta is an excellent dessert option to serve after a meal, and it pairs wonderfully with jams, fresh fruits, and vanilla. This version incorporates plain yogurt to balance the sweetness and prevent it from being overly rich.
+
+Estimated Cooking Difficulty: ★★★★
+
+## Essential Ingredients and Tools
+
+- Heavy cream
+- Sugar
+- Plain yogurt
+- Gelatin sheets
+- Fine-mesh sieve
+
+## Preparation
+
+Before starting, decide how many servings you wish to make. One batch yields enough for 3 to 6 people.
+
+Per serving:
+
+- Heavy cream: 200g
+- Sugar: 40g
+- Plain yogurt: 250g
+- Gelatin sheets: 6g
+
+## Instructions
+
+- Cut the gelatin sheets into small pieces and soak them in cold water.
+- Place the heavy cream and sugar in a saucepan and heat to 60°C (140°F).
+- Remove the saucepan from the heat. Take the gelatin out of the water, squeeze out excess moisture, and add it to the warm cream. Stir until fully dissolved.
+- Allow the cream mixture to cool to 40°C (104°F), then stir in the plain yogurt until well combined.
+- Strain the mixture through a fine-mesh sieve twice to ensure smoothness.
+- Divide the mixture into suitable containers and refrigerate for at least 4 hours.
+
+## Additional Notes
+
+- Traditional panna cotta is made solely with heavy cream and contains more sugar, resulting in a richer, sweeter taste. This modified version is lighter and less sweet, making it easier to enjoy.
+
+If you encounter any issues or have suggestions for improving this guide while following these instructions, please submit an Issue or Pull Request.