feat: enhance memo sorting functionality to support multiple fields

proto/api/v1/memo_service.proto

@@ -291,7 +291,9 @@ message ListMemosRequest {
 
   // Optional. The order to sort results by.
   // Default to "display_time desc".
-  // Example: "display_time desc" or "create_time asc"
+  // Supports comma-separated list of fields following AIP-132.
+  // Example: "pinned desc, display_time desc" or "create_time asc"
+  // Supported fields: pinned, display_time, create_time, update_time, name
   string order_by = 4 [(google.api.field_behavior) = OPTIONAL];
 
   // Optional. Filter to apply to the list results.

proto/gen/api/v1/activity_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/activity_service.proto
 

proto/gen/api/v1/attachment_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/attachment_service.proto
 

proto/gen/api/v1/auth_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/auth_service.proto
 

proto/gen/api/v1/common.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/common.proto
 

proto/gen/api/v1/idp_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/idp_service.proto
 

proto/gen/api/v1/inbox_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/inbox_service.proto
 

proto/gen/api/v1/markdown_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/markdown_service.proto
 

proto/gen/api/v1/memo_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/memo_service.proto
 
@@ -564,7 +564,9 @@ type ListMemosRequest struct {
 	State State `protobuf:"varint,3,opt,name=state,proto3,enum=memos.api.v1.State" json:"state,omitempty"`
 	// Optional. The order to sort results by.
 	// Default to "display_time desc".
-	// Example: "display_time desc" or "create_time asc"
+	// Supports comma-separated list of fields following AIP-132.
+	// Example: "pinned desc, display_time desc" or "create_time asc"
+	// Supported fields: pinned, display_time, create_time, update_time, name
 	OrderBy string `protobuf:"bytes,4,opt,name=order_by,json=orderBy,proto3" json:"order_by,omitempty"`
 	// Optional. Filter to apply to the list results.
 	// Filter is a CEL expression to filter memos.

proto/gen/api/v1/shortcut_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/shortcut_service.proto
 

proto/gen/api/v1/user_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/user_service.proto
 

proto/gen/api/v1/workspace_service.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: api/v1/workspace_service.proto
 

proto/gen/openapi.yaml

@@ -656,7 +656,9 @@ paths:
                   description: |-
                     Optional. The order to sort results by.
                      Default to "display_time desc".
-                     Example: "display_time desc" or "create_time asc"
+                     Supports comma-separated list of fields following AIP-132.
+                     Example: "pinned desc, display_time desc" or "create_time asc"
+                     Supported fields: pinned, display_time, create_time, update_time, name
                   schema:
                     type: string
                 - name: filter

proto/gen/store/activity.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: store/activity.proto
 

proto/gen/store/attachment.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: store/attachment.proto
 

proto/gen/store/idp.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: store/idp.proto
 

proto/gen/store/inbox.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: store/inbox.proto
 

proto/gen/store/memo.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: store/memo.proto
 

proto/gen/store/user_setting.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: store/user_setting.proto
 

proto/gen/store/workspace_setting.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.9
+// 	protoc-gen-go v1.36.10
 // 	protoc        (unknown)
 // source: store/workspace_setting.proto
 

server/router/api/v1/memo_service.go

@@ -875,30 +875,55 @@ func substring(s string, length int) string {
 }
 
 // parseMemoOrderBy parses the order_by field and sets the appropriate ordering in memoFind.
+// Follows AIP-132: supports comma-separated list of fields with optional "desc" suffix.
+// Example: "pinned desc, display_time desc" or "create_time asc".
 func (*APIV1Service) parseMemoOrderBy(orderBy string, memoFind *store.FindMemo) error {
-	// Parse order_by field like "display_time desc" or "create_time asc"
-	parts := strings.Fields(strings.TrimSpace(orderBy))
-	if len(parts) == 0 {
+	if strings.TrimSpace(orderBy) == "" {
 		return errors.New("empty order_by")
 	}
 
-	field := parts[0]
-	direction := "desc" // default
-	if len(parts) > 1 {
-		direction = strings.ToLower(parts[1])
-		if direction != "asc" && direction != "desc" {
-			return errors.Errorf("invalid order direction: %s, must be 'asc' or 'desc'", parts[1])
+	// Split by comma to support multiple sort fields per AIP-132.
+	fields := strings.Split(orderBy, ",")
+
+	// Track if we've seen pinned field.
+	hasPinned := false
+
+	for _, field := range fields {
+		parts := strings.Fields(strings.TrimSpace(field))
+		if len(parts) == 0 {
+			continue
+		}
+
+		fieldName := parts[0]
+		fieldDirection := "desc" // default per AIP-132 (we use desc as default for time fields)
+		if len(parts) > 1 {
+			fieldDirection = strings.ToLower(parts[1])
+			if fieldDirection != "asc" && fieldDirection != "desc" {
+				return errors.Errorf("invalid order direction: %s, must be 'asc' or 'desc'", parts[1])
+			}
+		}
+
+		switch fieldName {
+		case "pinned":
+			hasPinned = true
+			memoFind.OrderByPinned = true
+			// Note: pinned is always DESC (true first) regardless of direction specified.
+		case "display_time", "create_time", "name":
+			// Only set if this is the first time field we encounter.
+			if !memoFind.OrderByUpdatedTs {
+				memoFind.OrderByTimeAsc = fieldDirection == "asc"
+			}
+		case "update_time":
+			memoFind.OrderByUpdatedTs = true
+			memoFind.OrderByTimeAsc = fieldDirection == "asc"
+		default:
+			return errors.Errorf("unsupported order field: %s, supported fields are: pinned, display_time, create_time, update_time, name", fieldName)
 		}
 	}
 
-	switch field {
-	case "display_time", "create_time", "name":
-		memoFind.OrderByTimeAsc = direction == "asc"
-	case "update_time":
-		memoFind.OrderByUpdatedTs = true
-		memoFind.OrderByTimeAsc = direction == "asc"
-	default:
-		return errors.Errorf("unsupported order field: %s, supported fields are: display_time, create_time, update_time, name", field)
+	// If only pinned was specified, still need to set a default time ordering.
+	if hasPinned && !memoFind.OrderByUpdatedTs && len(fields) == 1 {
+		memoFind.OrderByTimeAsc = false // default to desc
 	}
 
 	return nil

store/db/mysql/memo.go

@@ -106,6 +106,9 @@ func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo
 		order = "ASC"
 	}
 	orderBy := []string{}
+	if find.OrderByPinned {
+		orderBy = append(orderBy, "`pinned` DESC")
+	}
 	if find.OrderByUpdatedTs {
 		orderBy = append(orderBy, "`updated_ts` "+order)
 	} else {

store/db/postgres/memo.go

@@ -97,6 +97,9 @@ func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo
 		order = "ASC"
 	}
 	orderBy := []string{}
+	if find.OrderByPinned {
+		orderBy = append(orderBy, "pinned DESC")
+	}
 	if find.OrderByUpdatedTs {
 		orderBy = append(orderBy, "updated_ts "+order)
 	} else {

store/db/sqlite/memo.go

@@ -98,6 +98,9 @@ func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo
 		order = "ASC"
 	}
 	orderBy := []string{}
+	if find.OrderByPinned {
+		orderBy = append(orderBy, "`pinned` DESC")
+	}
 	if find.OrderByUpdatedTs {
 		orderBy = append(orderBy, "`updated_ts` "+order)
 	} else {

store/memo.go

@@ -76,6 +76,7 @@ type FindMemo struct {
 	Offset *int
 
 	// Ordering
+	OrderByPinned    bool
 	OrderByUpdatedTs bool
 	OrderByTimeAsc   bool
 }

store/migrator.go

@@ -64,7 +64,7 @@ const (
 	// Before 0.22, migration history had inconsistent versioning that needed normalization.
 	migrationHistoryNormalizedVersion = "0.22"
 
-	// Mode constants for profile mode
+	// Mode constants for profile mode.
 	modeProd = "prod"
 	modeDemo = "demo"
 )

web/src/pages/Archived.tsx

@@ -34,14 +34,19 @@ const Archived = observer(() => {
       listSort={(memos: Memo[]) =>
         memos
           .filter((memo) => memo.state === State.ARCHIVED)
-          .sort((a, b) =>
-            viewStore.state.orderByTimeAsc
+          .sort((a, b) => {
+            // First, sort by pinned status (pinned memos first)
+            if (a.pinned !== b.pinned) {
+              return b.pinned ? 1 : -1;
+            }
+            // Then sort by display time
+            return viewStore.state.orderByTimeAsc
               ? dayjs(a.displayTime).unix() - dayjs(b.displayTime).unix()
-              : dayjs(b.displayTime).unix() - dayjs(a.displayTime).unix(),
-          )
+              : dayjs(b.displayTime).unix() - dayjs(a.displayTime).unix();
+          })
       }
       state={State.ARCHIVED}
-      orderBy={viewStore.state.orderByTimeAsc ? "display_time asc" : "display_time desc"}
+      orderBy={viewStore.state.orderByTimeAsc ? "pinned desc, display_time asc" : "pinned desc, display_time desc"}
       filter={memoFitler}
     />
   );

web/src/pages/Home.tsx

@@ -63,13 +63,18 @@ const Home = observer(() => {
         listSort={(memos: Memo[]) =>
           memos
             .filter((memo) => memo.state === State.NORMAL)
-            .sort((a, b) =>
-              viewStore.state.orderByTimeAsc
+            .sort((a, b) => {
+              // First, sort by pinned status (pinned memos first)
+              if (a.pinned !== b.pinned) {
+                return b.pinned ? 1 : -1;
+              }
+              // Then sort by display time
+              return viewStore.state.orderByTimeAsc
                 ? dayjs(a.displayTime).unix() - dayjs(b.displayTime).unix()
-                : dayjs(b.displayTime).unix() - dayjs(a.displayTime).unix(),
-            )
+                : dayjs(b.displayTime).unix() - dayjs(a.displayTime).unix();
+            })
         }
-        orderBy={viewStore.state.orderByTimeAsc ? "display_time asc" : "display_time desc"}
+        orderBy={viewStore.state.orderByTimeAsc ? "pinned desc, display_time asc" : "pinned desc, display_time desc"}
         filter={memoFilter}
       />
     </div>

web/src/pages/UserProfile.tsx

@@ -96,13 +96,18 @@ const UserProfile = observer(() => {
                 listSort={(memos: Memo[]) =>
                   memos
                     .filter((memo) => memo.state === State.NORMAL)
-                    .sort((a, b) =>
-                      viewStore.state.orderByTimeAsc
+                    .sort((a, b) => {
+                      // First, sort by pinned status (pinned memos first)
+                      if (a.pinned !== b.pinned) {
+                        return b.pinned ? 1 : -1;
+                      }
+                      // Then sort by display time
+                      return viewStore.state.orderByTimeAsc
                         ? dayjs(a.displayTime).unix() - dayjs(b.displayTime).unix()
-                        : dayjs(b.displayTime).unix() - dayjs(a.displayTime).unix(),
-                    )
+                        : dayjs(b.displayTime).unix() - dayjs(a.displayTime).unix();
+                    })
                 }
-                orderBy={viewStore.state.orderByTimeAsc ? "display_time asc" : "display_time desc"}
+                orderBy={viewStore.state.orderByTimeAsc ? "pinned desc, display_time asc" : "pinned desc, display_time desc"}
                 filter={memoFilter}
               />
             </>

web/src/types/proto/api/v1/memo_service.ts

@@ -195,7 +195,9 @@ export interface ListMemosRequest {
   /**
    * Optional. The order to sort results by.
    * Default to "display_time desc".
-   * Example: "display_time desc" or "create_time asc"
+   * Supports comma-separated list of fields following AIP-132.
+   * Example: "pinned desc, display_time desc" or "create_time asc"
+   * Supported fields: pinned, display_time, create_time, update_time, name
    */
   orderBy: string;
   /**