fix(cli): validate runtimes before uninstall

AGENTS.md

@@ -41,7 +41,7 @@ This repository owns the published `elydora` package, its CLI, synchronous and a
 - Propagate unexpected errors to the CLI boundary.
 - Use documented defaults only for genuinely optional configuration.
 - Avoid compatibility shims without a named public or user configuration contract.
-- Resolve every agent runtime directory as one physical child of `~/.elydora`; reject separators, traversal segments, cross-platform reserved names, and symbolic-link directories before writes or recursive removal.
+- Resolve every agent runtime directory as one physical child of `~/.elydora`; reject separators, traversal segments, cross-platform reserved names, symbolic-link directories, and linked identity configs before writes or recursive removal. Validate stored directory identity before changing host CLI configuration, and require an explicit agent ID when discovery is ambiguous.
 - Interpret `max_retries` as retries after the initial attempt and reject negative or non-integer values.
 - Automatically retry RFC-idempotent methods; retry non-idempotent methods only when the transport proves the request was never sent.
 - Honor valid `Retry-After` delay-seconds and HTTP-date values, and release retryable responses before sleeping.