fix(api): document X-Total-Count instead of non-existent X-Total header (#38717)

The `CommitList` and `ChangedFileList` swagger responses documented an
`X-Total` response header that their endpoints never send, they send
`X-Total-Count` via `SetTotalCountHeader`. This renames the documented
header and regenerates the spec.

`repoGetAllCommits` also uses `CommitList` and sends both headers, so
the new name is accurate for all three endpoints.

Also corrects `ChangedFileList` describing its headers as commit counts.

Documentation only, no handler behaviour changes.

Fixes https://github.com/go-gitea/gitea/issues/22048

---------

Signed-off-by: davidpavlovschi <davidpavlov2048@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>

routers/api/v1/swagger/repo.go

@@ -248,7 +248,7 @@ type swaggerCommitList struct {
 	PerPage int `json:"X-PerPage"`
 
 	// Total commit count
-	Total int `json:"X-Total"`
+	Total int `json:"X-Total-Count"`
 
 	// Total number of pages
 	PageCount int `json:"X-PageCount"`
@@ -266,11 +266,11 @@ type swaggerChangedFileList struct {
 	// The current page
 	Page int `json:"X-Page"`
 
-	// Commits per page
+	// Files per page
 	PerPage int `json:"X-PerPage"`
 
-	// Total commit count
-	Total int `json:"X-Total"`
+	// Total file count
+	Total int `json:"X-Total-Count"`
 
 	// Total number of pages
 	PageCount int `json:"X-PageCount"`

templates/swagger/v1-openapi3.generated.json

@@ -213,14 +213,14 @@
             }
           },
           "X-PerPage": {
-            "description": "Commits per page",
+            "description": "Files per page",
             "schema": {
               "format": "int64",
               "type": "integer"
             }
           },
-          "X-Total": {
-            "description": "Total commit count",
+          "X-Total-Count": {
+            "description": "Total file count",
             "schema": {
               "format": "int64",
               "type": "integer"
@@ -311,7 +311,7 @@
               "type": "integer"
             }
           },
-          "X-Total": {
+          "X-Total-Count": {
             "description": "Total commit count",
             "schema": {
               "format": "int64",

templates/swagger/v1-swagger.generated.json

@@ -31247,12 +31247,12 @@
         "X-PerPage": {
           "type": "integer",
           "format": "int64",
-          "description": "Commits per page"
+          "description": "Files per page"
         },
-        "X-Total": {
+        "X-Total-Count": {
           "type": "integer",
           "format": "int64",
-          "description": "Total commit count"
+          "description": "Total file count"
         }
       }
     },
@@ -31311,7 +31311,7 @@
           "format": "int64",
           "description": "Commits per page"
         },
-        "X-Total": {
+        "X-Total-Count": {
           "type": "integer",
           "format": "int64",
           "description": "Total commit count"