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/condiment/炸串酱料.md

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+
+# How to Make Zha Chuan Sauce
+
+Zha Chuan sauce, famously delicious even when poured over socks, is beginner-friendly and takes about 10 minutes to prepare.
+
+Estimated Cooking Difficulty: ★★
+
+## Essential Ingredients and Tools
+
+- Dried chili powder (both coarse and fine)
+- Cumin powder
+- Pepper powder
+- Five-spice powder
+- Sichuan peppercorn powder
+- Shisanxiang (Thirteen-Spice)
+- Malaxian (Spicy Fresh)
+- White sesame seeds
+
+## Measurements
+
+- Dried chili powder: 60 g
+- Cumin powder: 20 g
+- Pepper powder: 10 g
+- Five-spice powder: 15 g
+- Salt: 20 g
+- Sichuan peppercorn powder: 15 g
+- Chicken essence: 8 g
+- Shisanxiang (Thirteen-Spice): 5 g
+- Malaxian (Spicy Fresh): 5 g
+- White sesame seeds: 30 g
+
+## Instructions
+
+- Mix all ingredients in a container and stir well.
+- Heat oil in a pan. The amount of oil should be enough to fully submerge all the dry ingredients in the container.
+- Pour the hot oil in three equal parts (1/3 each), stirring continuously after each addition.
+- Finally, add 10 ml of sesame oil, 10 ml of light soy sauce, 10 ml of Sichuan peppercorn oil, and 10 ml of oyster sauce.
+
+## Additional Notes
+
+- The seasonings added in the final step can be adjusted according to your personal preference.
+- Do not pour all the hot oil at once; add it in stages while stirring.
+- Ingredient quantities can be scaled down proportionally.
+
+If you encounter any issues or have suggestions for improvement while following this guide, please submit an Issue or Pull request.