refactor: prepare to decouple the "model migration" package and "models" package (#38533)

Migrations should never use model structs directly, because the model
structs can be different in different releases. e.g. if one migration uses
"User" model, it works in the early releases, then one day, when the
User model changes, the migration breaks because it will use the
new (incorrect) User model, it should only use the old User model.

The same to "modules/structs".

---------

Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>

modelmigration/v1_27/v342.go

@@ -0,0 +1,42 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_27
+
+import (
+	"gitea.dev/modelmigration/base"
+	"gitea.dev/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddScopedWorkflowsSchema(x base.EngineMigration) error {
+	// Create the action_scoped_workflow_source table
+	type ScopedWorkflowConfig struct {
+		Required bool     `json:"required"`
+		Patterns []string `json:"patterns"`
+	}
+	type ActionScopedWorkflowSource struct {
+		ID              int64                            `xorm:"pk autoincr"`
+		OwnerID         int64                            `xorm:"UNIQUE(owner_repo) NOT NULL DEFAULT 0"`
+		SourceRepoID    int64                            `xorm:"INDEX UNIQUE(owner_repo) NOT NULL DEFAULT 0"`
+		WorkflowConfigs map[string]*ScopedWorkflowConfig `xorm:"JSON TEXT 'workflow_configs'"`
+		CreatedUnix     timeutil.TimeStamp               `xorm:"created"`
+		UpdatedUnix     timeutil.TimeStamp               `xorm:"updated"`
+	}
+	if err := x.Sync(new(ActionScopedWorkflowSource)); err != nil {
+		return err
+	}
+
+	// Add the columns that record where a run's workflow content came from
+	type ActionRun struct {
+		WorkflowRepoID    int64  `xorm:"NOT NULL DEFAULT 0"`
+		WorkflowCommitSHA string `xorm:"VARCHAR(64) NOT NULL DEFAULT ''"`
+		IsScopedRun       bool   `xorm:"NOT NULL DEFAULT false"`
+	}
+	_, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreDropIndices: true,
+		IgnoreConstrains:  true,
+	}, new(ActionRun))
+	return err
+}