Installs the Amplicode IntelliJ plugin into IntelliJ IDEA (Ultimate/Community) and GigaIDE on the user's machine. Trigger explicitly when the user asks to install the Amplicode plugin into their IDE, in any language. Also trigger implicitly when another Spring Agent Toolkit skill (`spring-explore`, `spring-data-jpa`, `spring-data-jdbc`, `crud-rest-controller`, `dto-creator`, `mapper-creator`, `spring-security-configuration`, `spring-planning`, `java-debug`) detects that the Amplicode MCP server is not connected and delegates installation to this skill. After the IDE-plugin is installed, the user must open any project and click the "Настроить Spring Agent" button on the welcome screen — that is what triggers MCP auto-configuration and spring-skills install. This skill does NOT configure MCP itself. Skip GoLand, PyCharm, WebStorm, Rider, CLion, RubyMine, PhpStorm, DataGrip and other JetBrains products — only IDEA and GigaIDE are supported targets.