modules/admin: move migration to services/migration/ directory

- services/migration/index.server.ts - orchestration
- services/migration/state.server.ts - state management
- services/migration/workers.server.ts - pure worker functions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: aster-void

src/lib/data/private/migration.remote.ts

@@ -1,11 +1,11 @@
 import { command, query } from "$app/server";
 import { requireUtCodeMember } from "$lib/server/database/auth.server";
-import { startDataMigration } from "$lib/server/services/migration.server";
+import { startDataMigration } from "$lib/server/services/migration/index.server";
 import {
   getMigrationState,
-  type MigrationState,
   resetMigration,
-} from "$lib/server/services/migration-state.server";
+} from "$lib/server/services/migration/state.server";
+import type { MigrationState } from "$lib/shared/types/migration";
 
 export const start = command(async (): Promise<{ started: boolean; message: string }> => {
   await requireUtCodeMember();

…/lib/server/services/migration.server.ts …erver/services/migration/index.server.tssrc/lib/server/services/migration.server.ts renamed to src/lib/server/services/migration/index.server.ts src/lib/server/services/migration.server.ts renamed to src/lib/server/services/migration/index.server.ts

@@ -15,13 +15,13 @@ import {
   isRunning,
   log,
   startMigration,
-} from "./migration-state.server";
+} from "./state.server";
 import {
   migrateArticles,
   migrateImages,
   migrateMembers,
   migrateProjects,
-} from "./migration-workers.server";
+} from "./workers.server";
 
 const REPO_URL = "https://github.com/ut-code/utcode.net.git";
 

…erver/services/migration-state.server.ts …erver/services/migration/state.server.tssrc/lib/server/services/migration-state.server.ts renamed to src/lib/server/services/migration/state.server.ts src/lib/server/services/migration-state.server.ts renamed to src/lib/server/services/migration/state.server.ts

@@ -4,8 +4,6 @@
 
 import type { MigrationState } from "$lib/shared/types/migration";
 
-export type { MigrationState };
-
 const initialState: MigrationState = {
   status: "idle",
   logs: [],