Add deployment scripts and troubleshooting docs

- deploy_ru_server2.sh: Russian language deployment script for server2
- update_db_ru.py: Database migration for Russian columns
- TROUBLESHOOTING.md: Common issues and solutions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

update_db_ru.py

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+import sqlite3
+conn = sqlite3.connect("/app/autonet.db")
+cursor = conn.cursor()
+
+# 1. 컬럼 추가 (이미 있으면 무시)
+try:
+    cursor.execute("ALTER TABLE hero_banners ADD COLUMN title_ru VARCHAR(100)")
+    print("Added title_ru column")
+except:
+    print("title_ru column already exists")
+
+try:
+    cursor.execute("ALTER TABLE hero_banners ADD COLUMN subtitle_ru VARCHAR(200)")
+    print("Added subtitle_ru column")
+except:
+    print("subtitle_ru column already exists")
+
+conn.commit()
+
+# 2. 러시아어 번역 추가
+translations = {
+    "모하비 더 마스터": ("Mohave The Master", "Мохаве Мастер", "Мохаве Мастер"),
+    "신형 K5(DL3)": ("New K5 (DL3)", "Шинэ K5 (DL3)", "Новый K5 (DL3)"),
+    "더 뉴그랜드스타렉스": ("The New Grand Starex", "Шинэ Гранд Старекс", "Новый Гранд Старекс"),
+    "더 뉴Santa Fe": ("The New Santa Fe", "Шинэ Санта Фе", "Новый Санта Фе"),
+    "더 뉴 K7": ("The New K7", "Шинэ K7", "Новый K7"),
+}
+
+cursor.execute("SELECT id, title_ko FROM hero_banners")
+for row in cursor.fetchall():
+    banner_id, title_ko = row
+    if title_ko in translations:
+        en, mn, ru = translations[title_ko]
+        cursor.execute(
+            "UPDATE hero_banners SET title_en=?, title_mn=?, title_ru=? WHERE id=?",
+            (en, mn, ru, banner_id)
+        )
+        print(f"Updated banner {banner_id}: {title_ko} -> EN: {en}, MN: {mn}, RU: {ru}")
+
+conn.commit()
+
+# 3. 확인
+cursor.execute("SELECT id, title_ko, title_en, title_mn, title_ru FROM hero_banners")
+print("\n=== Current Banner Data ===")
+for row in cursor.fetchall():
+    print(row)
+
+print("\nDone!")