v0.7.0

Two new ways to install: Claude Desktop installs avenir-mcp from one file, the .mcpb extension (#108), and Claude Code installs it as a plugin, read-only and locked (#143). Cursor, LM Studio and VS Code get a one-click install link (#144); updating the extension is the same drop as installing it (#145).

Also: fastmcp 4.1.1 (#140), certifi and vite raised past their advisories (#141), and one place now records that an undo was applied (#135).

No change to tool names or arguments. See CHANGELOG.md.