feat(tree): complete rust family runtime checklist

- add tree shell runtime artifact contracts and page/filetree/picker runtime reducers
- sink tree.subtree.move write operation through Rust and formalize command event plans
- harden file tree search projection contract and route thin-proxy boundaries
- record completed harness tasks and move design docs into process/done

wolai-frontend/convex/_utils/documentMoveOrder.ts

@@ -21,6 +21,14 @@ export type DocumentMoveOrderPlan = {
   patches: DocumentMoveOrderPatch[];
 };
 
+export type DocumentMoveWriteOperation = DocumentMoveOrderPlan & {
+  family: "tree";
+  schema: "mnote.tree.write_operation";
+  schemaVersion: 1;
+  operation: "tree.subtree.move.write";
+  workspaceId: string;
+};
+
 function normalizeParentId(value: string | null | undefined): string | null {
   const trimmed = typeof value === "string" ? value.trim() : "";
   return trimmed.length > 0 ? trimmed : null;
@@ -121,7 +129,7 @@ export function buildDocumentMoveOrderPlanFromDocuments(input: {
   };
 }
 
-function normalizePlan(value: unknown): DocumentMoveOrderPlan | null {
+export function normalizeDocumentMoveOrderPlan(value: unknown): DocumentMoveOrderPlan | null {
   if (!value || typeof value !== "object" || Array.isArray(value)) {
     return null;
   }
@@ -152,8 +160,37 @@ function normalizePlan(value: unknown): DocumentMoveOrderPlan | null {
   };
 }
 
-export function assertDocumentMoveOrderPlanMatches(expected: unknown, actual: DocumentMoveOrderPlan) {
-  const normalizedExpected = normalizePlan(expected);
+export function normalizeDocumentMoveWriteOperation(value: unknown): DocumentMoveWriteOperation | null {
+  if (!value || typeof value !== "object" || Array.isArray(value)) {
+    return null;
+  }
+  const record = value as Partial<DocumentMoveWriteOperation>;
+  if (
+    record.family !== "tree" ||
+    record.schema !== "mnote.tree.write_operation" ||
+    record.schemaVersion !== 1 ||
+    record.operation !== "tree.subtree.move.write" ||
+    typeof record.workspaceId !== "string" ||
+    !record.workspaceId.trim()
+  ) {
+    return null;
+  }
+  const normalizedPlan = normalizeDocumentMoveOrderPlan(value);
+  if (!normalizedPlan) {
+    return null;
+  }
+  return {
+    family: "tree",
+    schema: "mnote.tree.write_operation",
+    schemaVersion: 1,
+    operation: "tree.subtree.move.write",
+    workspaceId: record.workspaceId.trim(),
+    ...normalizedPlan,
+  };
+}
+
+export function assertDocumentMoveOrderPlanMatches(expected: unknown, actual: DocumentMoveOrderPlan): DocumentMoveOrderPlan {
+  const normalizedExpected = normalizeDocumentMoveOrderPlan(expected);
   if (!normalizedExpected) {
     throw new Error("Rust move plan 与 Convex 当前排序状态不一致");
   }
@@ -161,4 +198,21 @@ export function assertDocumentMoveOrderPlanMatches(expected: unknown, actual: Do
   if (JSON.stringify(normalizedExpected) !== JSON.stringify(actual)) {
     throw new Error("Rust move plan 与 Convex 当前排序状态不一致");
   }
+
+  return normalizedExpected;
+}
+
+export function assertDocumentMoveWriteOperationMatches(expected: unknown, actual: DocumentMoveOrderPlan): DocumentMoveOrderPlan {
+  const normalizedExpected = normalizeDocumentMoveWriteOperation(expected);
+  if (!normalizedExpected) {
+    throw new Error("Rust move write operation 与 Convex 当前排序状态不一致");
+  }
+
+  const { family: _family, schema: _schema, schemaVersion: _schemaVersion, operation: _operation, workspaceId: _workspaceId, ...expectedPlan } =
+    normalizedExpected;
+  if (JSON.stringify(expectedPlan) !== JSON.stringify(actual)) {
+    throw new Error("Rust move write operation 与 Convex 当前排序状态不一致");
+  }
+
+  return expectedPlan;
 }