## Why
Configured filesystem paths can be slow or inaccessible. Doctor needs to identify those paths and their configuration sources without letting a blocked filesystem call delay runtime shutdown.
## What changed
- Add `sandbox.filesystem_paths` to report literal filesystem grants, access modes, resolution outcomes, and configuration sources when available. Exclude deny rules and denied paths without expanding globs or special paths.
- Resolve paths in disposable helper processes, with wait budgets of two seconds per path and eight seconds total, checking at most 32 paths. Warn on slow or unsuccessful probes and incomplete checks; missing paths alone do not trigger warnings. Probes do not test read/write access.
- List paths without probing on Windows or when filesystem read restrictions apply.
- Increase the app-server doctor report timeout from 25 to 35 seconds to accommodate the probes.
## Testing
Add unit and integration coverage for path deduplication and deny filtering, configuration provenance, blocked-helper timeouts, helper execution without loading configuration, and report snapshots for resolved, missing, Windows, and read-restricted paths.
GitOrigin-RevId: b0732265fc2c83ea67acc24b442e39139d705f1b
## Why
Workspace paths from the client configuration belong to the client host. Sending them to a remote app server can override the server's workspace roots.
## What changed
- Omit client-configured `runtimeWorkspaceRoots` from remote start, resume, and fork requests so the server resolves defaults or restores saved roots.
- Preserve server-provided roots when forking an active session or side conversation, including after reloading client configuration.
- Reject `--add-dir` and `sandbox_workspace_write.writable_roots` command-line overrides with `--remote` before connecting, directing users to configure additional roots on the server.
## Testing
Add regression coverage for remote workspace roots across start, turn, resume, and fork operations; active-session forks after configuration reloads; and embedded requests retaining explicit roots. CLI tests cover rejected root overrides and continued acceptance of network-access overrides.
GitOrigin-RevId: b87ea6037d197db68e25a1a8610d693f6aa13caf
Eric Traut