Fix raw action config endpoint shadowed by config router

Rename GET/PUT /api/config/actions/{name} to /actions/{name}/raw in
file_config.py to eliminate the route-shadowing conflict with config.py,
which registers its own GET /actions/{name} returning ActionConfig.

Add configActionRaw endpoint helper in endpoints.ts and update
fetchActionFile/updateActionFile in config.ts to use it. Add
TestGetActionFileRaw and TestUpdateActionFileRaw test classes.

frontend/src/api/config.ts

@@ -263,14 +263,14 @@ export async function fetchActionFiles(): Promise<ConfFilesResponse> {
 }
 
 export async function fetchActionFile(name: string): Promise<ConfFileContent> {
-  return get<ConfFileContent>(ENDPOINTS.configAction(name));
+  return get<ConfFileContent>(ENDPOINTS.configActionRaw(name));
 }
 
 export async function updateActionFile(
   name: string,
   req: ConfFileUpdateRequest
 ): Promise<void> {
-  await put<undefined>(ENDPOINTS.configAction(name), req);
+  await put<undefined>(ENDPOINTS.configActionRaw(name), req);
 }
 
 export async function createActionFile(

frontend/src/api/endpoints.ts

@@ -104,6 +104,7 @@ export const ENDPOINTS = {
     `/config/jails/${encodeURIComponent(jailName)}/action/${encodeURIComponent(actionName)}`,
   configActions: "/config/actions",
   configAction: (name: string): string => `/config/actions/${encodeURIComponent(name)}`,
+  configActionRaw: (name: string): string => `/config/actions/${encodeURIComponent(name)}/raw`,
   configActionParsed: (name: string): string =>
     `/config/actions/${encodeURIComponent(name)}/parsed`,