diff --git a/.yoi/tickets/00001KW76E8EG/item.md b/.yoi/tickets/00001KW76E8EG/item.md
index 895e5f52..17f21194 100644
--- a/.yoi/tickets/00001KW76E8EG/item.md
+++ b/.yoi/tickets/00001KW76E8EG/item.md
@@ -1,8 +1,8 @@
 ---
 title: 'Workspace Backendのembedded Runtimeをfs-store永続化に切り替える'
-state: 'inprogress'
+state: 'closed'
 created_at: '2026-06-28T13:34:29Z'
-updated_at: '2026-06-28T19:15:12Z'
+updated_at: '2026-06-28T19:16:31Z'
 assignee: null
 queued_by: 'workspace-panel'
 queued_at: '2026-06-28T17:12:16Z'
diff --git a/.yoi/tickets/00001KW76E8EG/resolution.md b/.yoi/tickets/00001KW76E8EG/resolution.md
new file mode 100644
index 00000000..ba1e3849
--- /dev/null
+++ b/.yoi/tickets/00001KW76E8EG/resolution.md
@@ -0,0 +1,27 @@
+Workspace Backend embedded Runtime を memory-backed から fs-store backed `worker-runtime` へ切り替え、reviewer approval 後に orchestration branch へ merge した。
+
+実装内容:
+- `workspace-server` で `worker-runtime` の `fs-store` feature を有効化。
+- `ServerConfig` に `embedded_runtime_store_root` を追加。
+- default store root を user data 配下の `workspace-server/<workspace_id>/embedded-runtime` に設定し、project records / `.yoi/tickets` と混ぜない設計にした。
+- 通常の `WorkspaceApi::new` / `new_with_execution_backend` 経路を fs-store backed `EmbeddedWorkerRuntime::new_fs_store_with_execution_backend(...)` に切り替え。
+- `Runtime::with_fs_store_and_execution_backend(...)` を使う constructor を追加。
+- Backend restart 後に Runtime catalog / Worker snapshot / transcript / ConfigBundle store が復元されることを focused tests で確認。
+- restart 後の live execution handle は connected として偽装せず、stale/unconnected diagnostic/projection として扱う。
+- Browser-facing API に Runtime store root / raw path / execution handle を出さないことを確認。
+- production path が memory-backed runtime に戻らないよう通常 constructor を fs-store backed にした。
+
+Integrated commit:
+- `736b05c6 feat: persist embedded workspace runtime in fs store`
+- merge: `888e7b68 merge: embedded runtime fs-store`
+
+Validation:
+- `cargo fmt --all --check`: success
+- `cargo test -p yoi-workspace-server`: success (`38 passed`)
+- `cargo test -p worker-runtime --features "ws-server fs-store"`: success
+- `cargo check -p yoi`: success
+- `git diff --check`: success
+- `nix build .#yoi --no-link`: success
+
+Operational note:
+- User instructed not to use `StopPod` for now after repeated stop/hang symptoms. Cleanup will skip role-Pod shutdown and remove only child implementation worktree / branch.
\ No newline at end of file
diff --git a/.yoi/tickets/00001KW76E8EG/thread.md b/.yoi/tickets/00001KW76E8EG/thread.md
index 5efdb3af..a873742b 100644
--- a/.yoi/tickets/00001KW76E8EG/thread.md
+++ b/.yoi/tickets/00001KW76E8EG/thread.md
@@ -259,3 +259,94 @@ read-only 方針に合わせ、worktree 内のソース/Ticket は変更せず
 - `nix build .#yoi` は reviewer 側では再実行していません。ただし `Cargo.lock` / `package.nix` の更新と Rust 側の check/test は整合しており、報告されているビルド系コマンドは十分 plausible と判断します。
 
 ---
+
+<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-28T19:16:09Z -->
+
+## Implementation report
+
+Merge / validation report:
+
+Implementation branch was integrated into the orchestration branch after reviewer approval.
+
+Integrated commit:
+- `736b05c6 feat: persist embedded workspace runtime in fs store`
+
+Merge commit:
+- `888e7b68 merge: embedded runtime fs-store`
+
+Validation in orchestration worktree:
+- `cargo fmt --all --check`: success
+- `cargo test -p yoi-workspace-server`: success (`38 passed`)
+- `cargo test -p worker-runtime --features "ws-server fs-store"`: success (`26 passed` + rest server tests)
+- `cargo check -p yoi`: success
+- `git diff --check`: success
+- `nix build .#yoi --no-link`: success
+
+Outcome:
+- Workspace Backend embedded Runtime now uses fs-store backed `worker-runtime` for normal `WorkspaceApi` construction.
+- `ServerConfig` carries `embedded_runtime_store_root`, with default user-data/workspace-id local state path rather than project records / `.yoi/tickets`.
+- Restart restores catalog / Worker snapshot / ConfigBundle / transcript.
+- Restart does not falsely restore live execution handles as connected; stale/unconnected diagnostic/projection remains explicit.
+- Browser-facing APIs do not expose Runtime store root / raw path / execution handle.
+- Production path no longer uses `new_memory_with_execution_backend`; memory constructor remains for explicit low-level/test use only.
+
+---
+
+<!-- event: state_changed author: yoi-orchestrator at: 2026-06-28T19:16:18Z from: inprogress to: done reason: implementation_merged_and_validated field: state -->
+
+## State changed
+
+Reviewer approval後に implementation branch を orchestration branch へ merge し、要求された validation が成功したため done に遷移する。
+
+Validation:
+- `cargo fmt --all --check`: success
+- `cargo test -p yoi-workspace-server`: success (`38 passed`)
+- `cargo test -p worker-runtime --features "ws-server fs-store"`: success
+- `cargo check -p yoi`: success
+- `git diff --check`: success
+- `nix build .#yoi --no-link`: success
+
+---
+
+<!-- event: state_changed author: hare at: 2026-06-28T19:16:31Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-06-28T19:16:31Z status: closed -->
+
+## 完了
+
+Workspace Backend embedded Runtime を memory-backed から fs-store backed `worker-runtime` へ切り替え、reviewer approval 後に orchestration branch へ merge した。
+
+実装内容:
+- `workspace-server` で `worker-runtime` の `fs-store` feature を有効化。
+- `ServerConfig` に `embedded_runtime_store_root` を追加。
+- default store root を user data 配下の `workspace-server/<workspace_id>/embedded-runtime` に設定し、project records / `.yoi/tickets` と混ぜない設計にした。
+- 通常の `WorkspaceApi::new` / `new_with_execution_backend` 経路を fs-store backed `EmbeddedWorkerRuntime::new_fs_store_with_execution_backend(...)` に切り替え。
+- `Runtime::with_fs_store_and_execution_backend(...)` を使う constructor を追加。
+- Backend restart 後に Runtime catalog / Worker snapshot / transcript / ConfigBundle store が復元されることを focused tests で確認。
+- restart 後の live execution handle は connected として偽装せず、stale/unconnected diagnostic/projection として扱う。
+- Browser-facing API に Runtime store root / raw path / execution handle を出さないことを確認。
+- production path が memory-backed runtime に戻らないよう通常 constructor を fs-store backed にした。
+
+Integrated commit:
+- `736b05c6 feat: persist embedded workspace runtime in fs store`
+- merge: `888e7b68 merge: embedded runtime fs-store`
+
+Validation:
+- `cargo fmt --all --check`: success
+- `cargo test -p yoi-workspace-server`: success (`38 passed`)
+- `cargo test -p worker-runtime --features "ws-server fs-store"`: success
+- `cargo check -p yoi`: success
+- `git diff --check`: success
+- `nix build .#yoi --no-link`: success
+
+Operational note:
+- User instructed not to use `StopPod` for now after repeated stop/hang symptoms. Cleanup will skip role-Pod shutdown and remove only child implementation worktree / branch.
+
+---