docs(agent): add rules and skills

.agent/skills/git-sync/SKILL.md

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+# Git Sync Skill
+
+## Description
+This skill allows the agent to check the remote Git repository for updates. It automatically pulls changes if a new version is available on the remote server.
+
+## Triggers
+Activate this skill when the user asks:
+- "Проверь обновления" (Check for updates)
+- "Загрузи новую версию" (Download new version)
+- "Синхронизируй с гитом" (Sync with git)
+- "Есть ли изменения?" (Are there changes?)
+
+## Execution
+To run this skill, execute the bash script:
+
+```bash
+/bin/bash .agent/skills/git-sync/scripts/check_and_pull.sh
+```
+
+## Response Guidelines
+1. **Success**: If the script says "Successfully updated", inform the user the project is now on the latest version.
+2. **No Updates**: If the script says "Up-to-date", tell the user no changes were found.
+3. **Error**: If the script fails or reports conflicts, ask the user to check git status manually.

.agent/skills/git-sync/scripts/check_and_pull.sh

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+#!/bin/bash
+
+# --- НАСТРОЙКИ ---
+SERVER="root@192.168.1.87"
+REMOTE_PATH="/root/magistr/program"
+# -----------------
+
+echo "📡 Connecting to remote server ($SERVER)..."
+
+# 1. Запускаем fetch прямо на сервере
+# Флаг -o BatchMode=yes запрещает спрашивать пароль (чтобы скрипт не завис)
+ssh -o BatchMode=yes -o ConnectTimeout=10 "$SERVER" "cd $REMOTE_PATH && git fetch origin"
+
+if [ $? -ne 0 ]; then
+    echo "❌ Connection failed."
+    echo "Make sure SSH keys are set up and the server is reachable."
+    exit 1
+fi
+
+# 2. Проверяем количество новых коммитов (HEAD..@{u})
+BEHIND_COUNT=$(ssh "$SERVER" "cd $REMOTE_PATH && git rev-list --count HEAD..@{u} 2>/dev/null")
+
+# Если переменная пустая — значит ошибка в гите
+if [ -z "$BEHIND_COUNT" ]; then
+    echo "⚠️  Git status unknown. Upstream branch might not be set."
+    exit 1
+fi
+
+# 3. Логика обновления
+if [ "$BEHIND_COUNT" -gt 0 ]; then
+    echo "⬇️ Found $BEHIND_COUNT new commit(s). Pulling on server..."
+    
+    # Выполняем git pull на сервере
+    ssh "$SERVER" "cd $REMOTE_PATH && git pull"
+    
+    if [ $? -eq 0 ]; then
+        echo "✅ Server successfully updated!"
+    else
+        echo "❌ Update failed (merge conflicts?)."
+    fi
+else
+    echo "✨ Server is already up to date."
+fi