Attach connector caches to diagnostic uploads (#32891)

## What changed

- Include the active Codex Apps tools cache and connector directory cache, when available, in diagnostic uploads that include logs.
- Resolve cache paths from the current authentication context and use stable attachment filenames.
- List both optional cache files in the upload consent dialog.

## Testing

- Add coverage for selecting existing active cache files, including a directory cache without an account ID.
- Update consent dialog snapshots to include the optional attachments.

GitOrigin-RevId: 1d4ffbf2bcb96653f03dc25f91d80dd65038d585

codex-rs/connectors/src/directory_cache.rs

@@ -26,7 +26,8 @@ impl ConnectorDirectoryCacheContext {
         }
     }
 
-    pub(crate) fn cache_path(&self) -> PathBuf {
+    /// Returns the persisted connector directory cache path for this identity.
+    pub fn cache_path(&self) -> PathBuf {
         let cache_key_json = serde_json::to_string(&self.cache_key).unwrap_or_default();
         let cache_key_hash = sha1_hex(&cache_key_json);
         self.codex_home