Refactor document versioning to extract fields from uploaded .docx files on the server side

- Removed the `fields` parameter from the version upload form, as it is now extracted from the uploaded .docx file using the `extractContentControls` function.
- Updated related types and interfaces to reflect the new structure of version fields.
- Modified the OpenAPI specification to document the changes in the versioning process.
- Adjusted tests to ensure compliance with the new behavior, including validation for the absence of the `fields` parameter.
- Implemented a new function `extractDocumentSnapshot` to handle the extraction of content controls and document properties from .docx files.
- Updated metadata and versioning services to align with the new extraction logic.

app/api/template/extract/route.ts

@@ -1,6 +1,5 @@
 import { NextResponse } from "next/server";
-import { extractContentControls, extractBookmark, templateContentControls, setCustomDocProps, getDocProps,templateDynamicContents } from "@/lib/lib-tmpl";
-import { verifyEd25519, verifyHmacSha256 } from "@/lib/lib-utils";
+import { extractDocumentSnapshot } from "@/lib/lib-tmpl";
 // export const runtime = "nodejs";
 
 const DOCX_CONTENT_TYPE =
@@ -40,32 +39,13 @@ export async function POST(request: Request) {
     // File → Buffer
     const buffer = Buffer.from(await file.arrayBuffer());
 
-    // ใช้ lib-tmpl.ts เดิม
-    // const data = extractContentControls(buffer);
-
-    const cc = extractContentControls(buffer);
-    const bookmark = extractBookmark(buffer)
-    const properties = getDocProps(buffer)
-    let verify: Record<string, unknown> ={}
-    const ticket_data = properties?.custom?.ticket_data
-    const HmacSha256 = String(properties?.custom?.HmacSha256)
-    const Ed25519 = String(properties?.custom?.Ed25519)
-    
-    if(ticket_data && typeof ticket_data === 'string'){
-      const ticketDataObj= JSON.parse(ticket_data)
-      const unix_timestamp = Number(ticketDataObj.exp)*1000
-      if(unix_timestamp){
-        verify['exp'] = new Date(unix_timestamp).toLocaleString("th-TH", { timeZone: "Asia/Bangkok" })
-      }
-      if(TEST_SECRET && HmacSha256){
-        verify['HmacSha256'] = verifyHmacSha256(ticket_data,TEST_SECRET,HmacSha256)
-      }
-      if(TEST_PUBLIC_KEY_HEX&& Ed25519){
-        verify["Ed25519"]=verifyEd25519(ticket_data,Ed25519,TEST_PUBLIC_KEY_HEX)
-      }
-    }
-    
-    let returnData : Record<string, unknown> = {cc,bookmark,properties,verify}
+    // ชุดแกะข้อมูล `{cc, bookmark, properties, verify}` จาก lib-tmpl.ts — ตัวเดียวกับที่
+    // ใช้เก็บเป็น fields ของ version ตอน POST /api/documents/versions (2026-10-30) ·
+    // secret/public_key เป็นของผู้เรียกเพื่อ "ทดสอบ verify" เฉพาะฝั่งนี้
+    const returnData = extractDocumentSnapshot(buffer, {
+      secret: TEST_SECRET || undefined,
+      publicKeyHex: TEST_PUBLIC_KEY_HEX || undefined,
+    });
     return NextResponse.json(returnData);
   } catch (error) {
     console.error(error);