Move context from modules to services (#29440)

Since `modules/context` has to depend on `models` and many other
packages, it should be moved from `modules/context` to
`services/context` according to design principles. There is no logic
code change on this PR, only move packages.

- Move `code.gitea.io/gitea/modules/context` to
`code.gitea.io/gitea/services/context`
- Move `code.gitea.io/gitea/modules/contexttest` to
`code.gitea.io/gitea/services/contexttest` because of depending on
context
- Move `code.gitea.io/gitea/modules/upload` to
`code.gitea.io/gitea/services/context/upload` because of depending on
context

routers/api/v1/utils/git.go

@@ -8,10 +8,10 @@ import (
 	"fmt"
 	"net/http"
 
-	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/gitrepo"
 	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/services/context"
 )
 
 // ResolveRefOrSha resolve ref to sha if exist

routers/api/v1/utils/hook.go

@@ -12,12 +12,12 @@ import (
 	"code.gitea.io/gitea/models/db"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/models/webhook"
-	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/util"
 	webhook_module "code.gitea.io/gitea/modules/webhook"
+	"code.gitea.io/gitea/services/context"
 	webhook_service "code.gitea.io/gitea/services/webhook"
 )
 

routers/api/v1/utils/page.go

@@ -5,7 +5,7 @@ package utils
 
 import (
 	"code.gitea.io/gitea/models/db"
-	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/convert"
 )