* feat(hub): pass execution MCP servers to agents
Hub-owned execution capabilities need to reach provider sessions without becoming part of outward agent snapshots. Keep the configuration daemon-private so provider recovery continues to work.
* fix(hub): protect daemon MCP namespace
Hub execution MCP configuration must not replace the daemon-owned Paseo server. Validate only after owned-record lookup so idempotent replay remains stable while new launches fail before provider or durable state creation.
* fix(agent): reject unsupported MCP launches
* fix(agent): scope MCP support guard
* fix(agent): redact MCP metadata from wire payloads
* fix(agent): validate MCP support on restored sessions
* fix(session): rehydrate MCP config on resume
* fix(session): resume newest matching agent record
* fix(session): restore archive state after failed resume
