* docs(mcp): correct the CLI mcp config path
* docs(tools): correct the same stale .cline/mcp.json reference
* docs(cli): correct the MCP config entry in the configuration tree
The CLI reference listed `mcp.json` under the project-root `.cline/` tree,
but `resolveMcpSettingsPath()` only ever resolves a global path:
`~/.cline/data/settings/cline_mcp_settings.json` (overridable via
`CLINE_MCP_SETTINGS_PATH`). There is no project-level MCP config reader.
Move the entry to the `~/.cline/data/settings/` tree where the resolver
actually looks, and drop the project-root entry.