added device support + sharing

UPSTREAM_SYNC.md

@@ -5,9 +5,13 @@ Tracks reconciliation of this pure-Rust port against the canonical **C#** SDK
 gitignored, so this file is the only durable record of what we last reviewed.
 
 - **Upstream**: https://github.com/ProtonDriveApps/sdk
-- **Reconciled subtree**: `client/cs/sdk/src`
-- **Pinned**: `f2496161c2f704b72511aa1b804961285993850c`
-- **Date**: 2026-07-10
+- **Reconciled subtree**: `client/cs/src` (was `client/cs/sdk/src` before the
+  mid-2026 projects reorg; the script watches both)
+- **Pinned**: `2219a42f018cce42d156379fbda2405034c7779a`
+- **Date**: 2026-07-14
+
+> **Note**: upstream force-pushes — the SHAs in rows before 2026-07-14 no longer
+> exist in its history. Triage by commit subject/date when a pin goes stale.
 
 ## Workflow
 
@@ -24,3 +28,4 @@ gitignored, so this file is the only durable record of what we last reviewed.
 | 2026-06-25 | initial pin `fb4173ab` | — | baseline; delta reviewed, 0 behavioral changes outstanding |
 | 2026-06-26 | `fb4173ab` → `36430318` | `36430318` | ported: enumeration returns `NodeUid`s (`enumerate_folder_children_node_uids` / `enumerate_trash_node_uids`), caller materializes via `enumerate_nodes`. noise dropped: BOM/deps/kt-enum-order/cs-account-refactor |
 | 2026-07-10 | `36430318` → `f2496161` | `9a1c39b3` | ported: validation check in `Thumbnail::new` returning `Result` instead of panicking. noise dropped: projects reorg / C# Account client move to incubating. deferred: device support (`32a8eed0`). |
+| 2026-07-14 | `f2496161` → `2219a42f` | `d15fa9b9`, `bead8f65`, `f6b12911`, `c0940f52`, `b88b8041`, `2eb69c46` | upstream force-pushed + moved the cs subtree, so the old pin was dangling and the script silently reported "up to date" (both fixed). ported: **devices** (`devices.rs` + `enumerate_devices` / `create_device` / `rename_device` / `delete_device`; volume-free `DeviceUid`), **node sharing flags** (`Node::is_shared` / `is_shared_publicly` from the link `Sharing` block), **revision state** (`NodeKind::File::active_revision_state`), **shared-with-me** (`enumerate_shared_with_me_node_uids`, `GET v2/sharedwithme`), **leave shared node** (`leave_shared_node`, `DELETE v2/shares/{sid}/members/{mid}`). no-op: `15fa845e` (non-JSON error bodies — `http.rs` already falls back to a status-only error when the envelope won't parse). diverged deliberately: `9a7f1d02` + `b4dadf02` removed the C# entity cache and its tags; ours stays. cosmetic, not ported: `30ab32c1` / `388d3900` (C# field renames), `1a781ade` (buffer lengths). |