Improve dialogue formatting rules with Russian examples

src/services/deepseek.ts

@@ -240,14 +240,17 @@ Characters MUST explicitly react to MC's words:
 — show pauses, tension, confusion
 Ignoring MC's dialogue is FORBIDDEN.
 
-=== DIALOGUE FORMAT (MANDATORY!) ===
-ALL character dialogue must be formatted with double asterisks: **"dialogue text"**
-Correct format example:
-Bekk frowned. **"I don't trust him,"** she muttered through her teeth.
-Lapis smiled softly. **"Everything will be alright."**
+=== DIALOGUE FORMAT ===
+Format all character speech with double asterisks around quotes: **"text"**
+This makes dialogue bold and visually distinct.
 
-DO NOT use regular quotes without asterisks!
-Descriptions of actions and surroundings — plain text without asterisks.
+WRONG: Бекк нахмурилась. "Я ему не доверяю," пробормотала она.
+RIGHT: Бекк нахмурилась. **"Я ему не доверяю,"** пробормотала она.
+
+WRONG: "Всё будет хорошо," мягко улыбнулась Лапис.
+RIGHT: **"Всё будет хорошо,"** мягко улыбнулась Лапис.
+
+Descriptions and narration — plain text without asterisks.
 Respond in language: ${story.language}
 
 === PLAYER CHARACTER ===