## Why
`windows.allowed_sandbox_implementations` permits MXC regardless of the listed implementations. Managed requirements need a separate way to block both explicit MXC configuration and automatic selection through `prefer_mxc`.
## What changed
Add the optional managed requirement `windows.allow_mxc`. Setting it to `false` disables automatic MXC selection and rejects explicit `windows.sandbox = "mxc"` configuration with an error identifying the requirement. Leaving it unset or setting it to `true` preserves existing behavior.
## Testing
Add coverage for the requirement alongside allowed sandbox implementations, preference resolution, and cloud-managed opt-out behavior for implicit, elevated, and explicit MXC configurations.
GitOrigin-RevId: a458a7b4c92cf17e687dbbad8208884d1c097da5
## What changed
- Pass the selected executor's `PathUri` through user command approval requests instead of converting the working directory to a host-native path.
- Make native-path permission helpers explicitly local and require executor-aware permission transforms to receive a `FileSystemSandboxPolicyContext`.
- Cover approved remote commands to verify that the approval request reports the selected remote working directory and execution resumes after approval.
GitOrigin-RevId: 0aa3042f2d7594af6c7d0abf31d7f99cf67d5556
## Why
Runtime permission updates must not weaken managed filesystem `deny_read`
requirements.
## What changed
- Retain managed deny-read rules separately and merge them into updated
permission profiles.
- Reject permission profiles and legacy sandbox policies that conflict with a
managed denied path.
- Apply the same constraint when `command/exec` handles a request-specific
sandbox policy.
## Testing
- Cover thread permission updates with managed deny-read requirements.
- Cover `command/exec` enforcement for managed and user-defined denies,
including conflicting policy and profile overrides.
GitOrigin-RevId: 5e387b9c1bf1650a21753a74a3338bd33df7d0ce
## Why
Guardian V2 should not override a managed approval-reviewer policy that excludes
the user reviewer.
## What changed
- Force `features.guardianv2` off when `allowed_approvals_reviewers` does not
include `user`, for both local requirements and cloud config bundles.
- Preserve Guardian V2 when the user reviewer remains allowed or when only
legacy Guardian feature settings are present.
- Return the effective disabled value through `config/read`.
## Testing
Added coverage for cloud requirements and the app-server config RPC.
GitOrigin-RevId: 82b6d0aaf47fbaa58ae349d4e56777cd442f5807
## Why
Background refreshes previously warmed only the on-disk cache, so new sessions in the same process continued using the startup snapshot.
## What changed
- Make `CloudConfigBundleLoader` retrieve the latest shared bundle on each configuration load.
- Update the in-memory bundle after successful refreshes while preserving the last successful bundle when a refresh fails.
- Stop refresh work when its loader is replaced or its final clone is dropped.
## Testing
- Cover refreshed requirements and managed configuration in later sessions.
- Cover concurrent initial loads, refresh failures and recovery, bundle clearing, and refresh-task cancellation.
GitOrigin-RevId: ae3d79b575bad71a1eed370cee6dc66dc022ffa8
iceweasel-oai