Address remaining review feedback

- Use ParseIssueFilterStateIsClosed for ListProjects state parsing
- Add SortTypeProjectColumnSorting const, replace magic string
- Use GetIssueByRepoID and dedupe Add/Remove issue handlers
- Migrate Column.Sorting from int8 to int (drops 127-column limit, allows
  the API to expose a normal int without truncation)
- Introduce project_service.UpdateProject with optional.Option fields,
  use it from the API EditProject handler

Co-Authored-By: Claude (Opus 4.7) <noreply@anthropic.com>

models/issues/issue_search.go

@@ -22,7 +22,11 @@ import (
 	"xorm.io/xorm"
 )
 
-const ScopeSortPrefix = "scope-"
+const (
+	ScopeSortPrefix = "scope-"
+	// SortTypeProjectColumnSorting orders issues within a project column by their project_issue.sorting value.
+	SortTypeProjectColumnSorting = "project-column-sorting"
+)
 
 // IssuesOptions represents options of an issue.
 type IssuesOptions struct { //nolint:revive // export stutter
@@ -122,7 +126,7 @@ func applySorts(sess *xorm.Session, sortType string, priorityRepoID int64) {
 			"ELSE 2 END ASC", priorityRepoID).
 			Desc("issue.created_unix").
 			Desc("issue.id")
-	case "project-column-sorting":
+	case SortTypeProjectColumnSorting:
 		sess.Asc("project_issue.sorting").Desc("issue.created_unix").Desc("issue.id")
 	default:
 		sess.Desc("issue.created_unix").Desc("issue.id")

models/migrations/migrations.go

@@ -409,6 +409,7 @@ func prepareMigrationTasks() []*migration {
 		// Gitea 1.26.0 ends at migration ID number 330 (database version 331)
 
 		newMigration(331, "Add ActionRunAttempt model and related action fields", v1_27.AddActionRunAttemptModel),
+		newMigration(332, "Widen project_board.sorting from int8 to int", v1_27.WidenProjectBoardSorting),
 	}
 	return preparedMigrations
 }

models/migrations/v1_27/v332.go

@@ -0,0 +1,26 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_27
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+// WidenProjectBoardSorting changes project_board.sorting from int8 (TINYINT) to int (INTEGER)
+// so the public API can expose a regular int and lift the 127 column upper bound.
+func WidenProjectBoardSorting(x *xorm.Engine) error {
+	if x.Dialect().URI().DBType == schemas.SQLITE {
+		return nil
+	}
+	return base.ModifyColumn(x, "project_board", &schemas.Column{
+		Name:           "sorting",
+		SQLType:        schemas.SQLType{Name: "INT"},
+		Nullable:       false,
+		Default:        "0",
+		DefaultIsEmpty: false,
+	})
+}

models/project/column.go

@@ -42,7 +42,7 @@ type Column struct {
 	ID      int64 `xorm:"pk autoincr"`
 	Title   string
 	Default bool   `xorm:"NOT NULL DEFAULT false"` // issues not assigned to a specific column will be assigned to this column
-	Sorting int8   `xorm:"NOT NULL DEFAULT 0"`
+	Sorting int    `xorm:"NOT NULL DEFAULT 0"`
 	Color   string `xorm:"VARCHAR(7)"`
 
 	ProjectID int64 `xorm:"INDEX NOT NULL"`
@@ -128,8 +128,7 @@ func createDefaultColumnsForProject(ctx context.Context, project *Project) error
 	})
 }
 
-// maxProjectColumns max columns allowed in a project, this should not bigger than 127
-// because sorting is int8 in database
+// maxProjectColumns is the maximum number of columns allowed in a project.
 const maxProjectColumns = 20
 
 // NewColumn adds a new project column to a given project
@@ -149,7 +148,7 @@ func NewColumn(ctx context.Context, column *Column) error {
 	if res.ColumnCount >= maxProjectColumns {
 		return errors.New("NewBoard: maximum number of columns reached")
 	}
-	column.Sorting = int8(util.Iif(res.ColumnCount > 0, res.MaxSorting+1, 0))
+	column.Sorting = int(util.Iif(res.ColumnCount > 0, res.MaxSorting+1, 0))
 	_, err := db.GetEngine(ctx).Insert(column)
 	return err
 }

models/project/column_test.go

@@ -83,9 +83,9 @@ func Test_MoveColumnsOnProject(t *testing.T) {
 	columns, err := GetProjectColumns(t.Context(), project1.ID, db.ListOptionsAll)
 	assert.NoError(t, err)
 	assert.Len(t, columns, 3)
-	assert.EqualValues(t, 0, columns[0].Sorting) // even if there is no default sorting, the code should also work
-	assert.EqualValues(t, 0, columns[1].Sorting)
-	assert.EqualValues(t, 0, columns[2].Sorting)
+	assert.Equal(t, 0, columns[0].Sorting) // even if there is no default sorting, the code should also work
+	assert.Equal(t, 0, columns[1].Sorting)
+	assert.Equal(t, 0, columns[2].Sorting)
 
 	err = MoveColumnsOnProject(t.Context(), project1, map[int64]int64{
 		0: columns[1].ID,