rwx

Add telemetry events to the RWX CLI. Covers event naming, prop conventions, how to thread the collector into internal packages, how sentinel errors map to `cli.error` `error_type` buckets (and the trap of returning unwrapped errors that classify as `unknown`), and how to test event recording. TRIGGER when: the user asks to "add telemetry", "log a telemetry event", "instrument", "track usage of", "record metrics for"; OR when adding a new error path / sentinel error and asking how it interacts with telemetry / `cli.error` / `classifyError`; OR when an error is showing up as `error_type: unknown` in telemetry.

Build the RWX CLI inside a git worktree. The LSP bundle is gitignored and won't be present in new worktrees, so it must be copied from the main repo before `go build` will succeed. TRIGGER when: a `go build`, `go vet`, or similar command fails with "pattern bundle/server.js: no matching files found" inside a worktree.