connector-v0.1.24

fix(connector): ship cheers-mcp-server with the connector install

The connector injects the cheers stdio MCP server into every agent
session (policy.mcp.inject_cheers), but nothing ever installed that
binary: the release only shipped cce-acp-connector and the resolver
fell back to a dev-tree path or a bare PATH lookup, so installed bots
silently lost all cheers platform tools.

- resolver: prefer a cheers-mcp-server sitting next to the connector's
  own executable (how installed deployments lay the pair out)
- release-connector.yml: build + attach cheers-mcp-server for every
  target alongside the connector
- install.sh: download the MCP server into the same bin dir as the
  connector (best-effort, with an explicit warning when unavailable)

Bump connector to 0.1.24.