diff --git a/.gitignore b/.gitignore
index 4f1d2a1..4c232e3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,5 +4,6 @@ node_modules/
 .env
 data/*.db
 data/*.db-*
+data/backups/
 public/uploads/*
 !public/uploads/.gitkeep
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..f1db8bb
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,24 @@
+# Changelog
+
+本專案遵循 [Semantic Versioning](https://semver.org/lang/zh-TW/)；版本 `0.x` 表示功能仍可能調整。
+
+## [0.2.0] - Unreleased
+
+### Added
+
+- 來源的重新命名、停用／啟用、刪除、離開共享來源與建立者轉移。
+- 同步工作觸發來源、開始／完成時間、重試次數與控制台歷史紀錄。
+- Pull 同步去重，避免手動、webhook 與排程重複建立處理中工作。
+- 帳號密碼變更與管理員同步異常檢視頁。
+- SQLite migration 版本紀錄，以及資料庫與附件備份／還原文件和腳本。
+
+### Changed
+
+- 停用來源後不再接受 webhook、手動同步、排程同步或 Hub 發文推送。
+- 來源刪除時會移除遠端鏡像貼文，保留 Hub 原生貼文但解除來源關聯。
+
+## [0.1.0] - 2026-07-19
+
+### Added
+
+- 第一個公開 Pre-release：Memos 公開貼文聚合、附件、留言、表情、Hub 發文與 webhook 同步。
diff --git a/README.md b/README.md
index d38cdef..b78c898 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 自架的 Memos 公開貼文 Hub。將朋友各自 Memos 中的公開貼文集中展示，同時保留 Hub 內的留言、表情回應與發文功能。
 
+目前開發版本：`v0.2.0`（尚未發布）。版本變更請見 [CHANGELOG.md](CHANGELOG.md)。
+
 ## 功能
 
 - 匯入多個 Memos 來源的 `PUBLIC` 貼文、標籤與附件。
@@ -11,6 +13,9 @@
 - 使用者可加入共享來源並手動同步或發文；僅來源建立者能管理 webhook URL。
 - Webhook URL 採不可猜測的隨機密鑰路徑、雜湊保存與簡易速率限制。
 - 控制台會顯示最近一次收到 webhook 的時間及最後同步時間。
+- 來源建立者可重新命名、停用、刪除或轉移所有權；共享成員可自行離開來源。
+- 同步工作具去重、重試、觸發來源與歷史紀錄；管理員可集中檢視異常。
+- 內建 SQLite 與附件備份腳本，以及可追蹤的 schema migration。
 
 ## 快速啟動（WSL／Docker）
 
@@ -113,6 +118,8 @@ https://你的網域/api/sync/webhook/來源ID/隨機密鑰
 
 `data/` 與 `public/uploads/` 是正式資料，備份時請一併備份。`.next/` 與 `node_modules/` 是可重新產生的建置／依賴資料，不需備份。
 
+備份、還原及資料庫 migration 的操作請見 [維運文件](docs/OPERATIONS.md)。
+
 ## 正式部署
 
 將 `NEXT_PUBLIC_APP_URL` 設成實際 HTTPS 網域，並以反向代理將該網域導向 Web 容器的 3000 連接埠（或主機的 8088 對應埠）。務必確保外部可連到 webhook URL，否則仍會由定期校正同步補回資料，但不會即時更新。
diff --git a/app/account/page.tsx b/app/account/page.tsx
new file mode 100644
index 0000000..3ed5e89
--- /dev/null
+++ b/app/account/page.tsx
@@ -0,0 +1,7 @@
+import { redirect } from "next/navigation";
+import { getSession } from "@/lib/auth";
+
+export default async function Account({ searchParams }: { searchParams: Promise<{ error?: string; updated?: string }> }) {
+  const user = await getSession(); if (!user) redirect("/login"); const query = await searchParams;
+  return <><h1>帳號設定</h1>{query.error && <p className="error">{query.error}</p>}{query.updated && <p>密碼已更新。</p>}<section className="card"><p className="meta">帳號：{user.username}</p><h2>變更密碼</h2><form action="/api/auth/password" method="post"><label>目前密碼<input name="currentPassword" type="password" autoComplete="current-password" required /></label><label>新密碼<input name="newPassword" type="password" autoComplete="new-password" minLength={10} required /></label><label>確認新密碼<input name="confirmPassword" type="password" autoComplete="new-password" minLength={10} required /></label><button>更新密碼</button></form></section></>;
+}
diff --git a/app/admin/page.tsx b/app/admin/page.tsx
new file mode 100644
index 0000000..51b0557
--- /dev/null
+++ b/app/admin/page.tsx
@@ -0,0 +1,12 @@
+import { redirect } from "next/navigation";
+import { getSession } from "@/lib/auth";
+import { db } from "@/lib/db";
+
+export const dynamic = "force-dynamic";
+
+export default async function AdminPage() {
+  const user = await getSession(); if (!user || user.role !== "admin") redirect("/");
+  const failures = db.prepare("SELECT j.id,j.kind,j.trigger,j.status,j.attempts,j.last_error,j.created_at,j.finished_at,s.id AS source_id,s.name,s.base_url FROM sync_jobs j JOIN sources s ON s.id=j.source_id WHERE j.status='failed' OR s.sync_status='error' ORDER BY COALESCE(j.finished_at,j.created_at) DESC LIMIT 100").all() as any[];
+  const sources = db.prepare("SELECT s.id,s.name,s.base_url,s.sync_status,s.last_synced_at,s.last_error,s.is_enabled,count(sm.user_id) AS member_count FROM sources s LEFT JOIN source_members sm ON sm.source_id=s.id GROUP BY s.id ORDER BY s.id DESC").all() as any[];
+  return <><h1>管理員：同步狀態</h1><section className="card"><h2>失敗或異常工作</h2>{failures.length ? <ul className="job-list">{failures.map((item) => <li key={`${item.id}-${item.source_id}`}><strong>{item.name}</strong>（來源 #{item.source_id}） · {item.kind || "source"} · <span className="tag">{item.status || "error"}</span><br /><span className="error">{item.last_error || "來源處於錯誤狀態"}</span><br /><span className="meta">嘗試 {item.attempts || 0} 次；{new Date((item.finished_at || item.created_at) + "Z").toLocaleString("zh-TW")}</span></li>)}</ul> : <p className="muted">沒有同步異常。</p>}</section><section className="card"><h2>所有來源</h2><ul className="job-list">{sources.map((source) => <li key={source.id}><strong>{source.name}</strong> · <span className="tag">{source.is_enabled ? source.sync_status : "disabled"}</span> · 成員 {source.member_count}<br /><span className="meta">#{source.id} · {source.base_url} · 上次同步：{source.last_synced_at || "尚未完成"}</span>{source.last_error && <><br /><span className="error">{source.last_error}</span></>}</li>)}</ul></section></>;
+}
diff --git a/app/api/auth/password/route.ts b/app/api/auth/password/route.ts
new file mode 100644
index 0000000..a34f7f2
--- /dev/null
+++ b/app/api/auth/password/route.ts
@@ -0,0 +1,18 @@
+import bcrypt from "bcryptjs";
+import { NextResponse } from "next/server";
+import { requireUser } from "@/lib/auth";
+import { db } from "@/lib/db";
+import { externalUrl } from "@/lib/http";
+
+export async function POST(req: Request) {
+  try {
+    const user = await requireUser(); const form = await req.formData();
+    const currentPassword = String(form.get("currentPassword") || ""); const newPassword = String(form.get("newPassword") || ""); const confirmPassword = String(form.get("confirmPassword") || "");
+    if (newPassword.length < 10) throw new Error("新密碼至少需要 10 個字元");
+    if (newPassword !== confirmPassword) throw new Error("兩次新密碼不一致");
+    const account = db.prepare("SELECT password_hash FROM users WHERE id=? AND disabled=0").get(user.id) as { password_hash: string } | undefined;
+    if (!account || !(await bcrypt.compare(currentPassword, account.password_hash))) throw new Error("目前密碼不正確");
+    db.prepare("UPDATE users SET password_hash=? WHERE id=?").run(await bcrypt.hash(newPassword, 12), user.id);
+    return NextResponse.redirect(externalUrl(req, "/account?updated=1"));
+  } catch (error) { return NextResponse.redirect(externalUrl(req, "/account?error=" + encodeURIComponent(error instanceof Error ? error.message : "password"))); }
+}
diff --git a/app/api/posts/route.ts b/app/api/posts/route.ts
index a71f2fd..57cbe56 100644
--- a/app/api/posts/route.ts
+++ b/app/api/posts/route.ts
@@ -1,2 +1,2 @@
 import { NextResponse } from "next/server"; import { requireUser } from "@/lib/auth"; import { db } from "@/lib/db"; import { externalUrl } from "@/lib/http"; import { mkdir, writeFile } from "node:fs/promises"; import { randomUUID } from "node:crypto"; import { extname, join } from "node:path";
-export async function POST(req:Request){const json=req.headers.get("accept")?.includes("application/json");try{const user=await requireUser();const f=await req.formData();const content=String(f.get("content")||"").trim();const visibility=String(f.get("visibility")||"PUBLIC");const sourceId=Number(f.get("sourceId"));const tags=String(f.get("tags")||"").split(/\s*,\s*/).filter(Boolean).map(t=>t.replace(/^#/,""));if(!content||!['PRIVATE','PROTECTED','PUBLIC'].includes(visibility)||!sourceId)throw new Error("Invalid post");const source=db.prepare("SELECT s.id FROM sources s JOIN source_members sm ON sm.source_id=s.id WHERE s.id=? AND sm.user_id=?").get(sourceId,user.id);if(!source)throw new Error("Source not found");const max=Number(process.env.UPLOAD_MAX_BYTES||10485760);const files=f.getAll('attachments').filter((x):x is File=>x instanceof File&&x.size>0);const attachments:any[]=[];await mkdir(join(process.cwd(),'public','uploads'),{recursive:true});for(const file of files){if(file.size>max)throw new Error(`${file.name} exceeds upload limit`);const id=randomUUID()+extname(file.name);await writeFile(join(process.cwd(),'public','uploads',id),Buffer.from(await file.arrayBuffer()));attachments.push({name:file.name,url:`/uploads/${id}`,type:file.type,size:file.size});}const out=db.prepare("INSERT INTO posts(source_id,author_id,content,visibility,tags_json,attachments_json,origin,sync_status) VALUES(?,?,?,?,?,?,'hub','queued')").run(sourceId,user.id,content,visibility,JSON.stringify(tags),JSON.stringify(attachments));db.prepare("INSERT INTO sync_jobs(source_id,kind,payload_json) VALUES(?, 'push', ?)").run(sourceId,JSON.stringify({postId:out.lastInsertRowid}));if(json)return NextResponse.json({id:Number(out.lastInsertRowid)},{status:201});return NextResponse.redirect(externalUrl(req,`/posts/${out.lastInsertRowid}`));}catch(e){const message=e instanceof Error?e.message:'post';if(json)return NextResponse.json({error:message},{status:400});return NextResponse.redirect(externalUrl(req,'/dashboard?error='+encodeURIComponent(message)));}}
+export async function POST(req:Request){const json=req.headers.get("accept")?.includes("application/json");try{const user=await requireUser();const f=await req.formData();const content=String(f.get("content")||"").trim();const visibility=String(f.get("visibility")||"PUBLIC");const sourceId=Number(f.get("sourceId"));const tags=String(f.get("tags")||"").split(/\s*,\s*/).filter(Boolean).map(t=>t.replace(/^#/,""));if(!content||!['PRIVATE','PROTECTED','PUBLIC'].includes(visibility)||!sourceId)throw new Error("Invalid post");const source=db.prepare("SELECT s.id FROM sources s JOIN source_members sm ON sm.source_id=s.id WHERE s.id=? AND sm.user_id=? AND s.is_enabled=1").get(sourceId,user.id);if(!source)throw new Error("Source not available");const max=Number(process.env.UPLOAD_MAX_BYTES||10485760);const files=f.getAll('attachments').filter((x):x is File=>x instanceof File&&x.size>0);const attachments:any[]=[];await mkdir(join(process.cwd(),'public','uploads'),{recursive:true});for(const file of files){if(file.size>max)throw new Error(`${file.name} exceeds upload limit`);const id=randomUUID()+extname(file.name);await writeFile(join(process.cwd(),'public','uploads',id),Buffer.from(await file.arrayBuffer()));attachments.push({name:file.name,url:`/uploads/${id}`,type:file.type,size:file.size});}const out=db.prepare("INSERT INTO posts(source_id,author_id,content,visibility,tags_json,attachments_json,origin,sync_status) VALUES(?,?,?,?,?,?,'hub','queued')").run(sourceId,user.id,content,visibility,JSON.stringify(tags),JSON.stringify(attachments));db.prepare("INSERT INTO sync_jobs(source_id,kind,payload_json,trigger) VALUES(?, 'push', ?, 'manual')").run(sourceId,JSON.stringify({postId:out.lastInsertRowid}));if(json)return NextResponse.json({id:Number(out.lastInsertRowid)},{status:201});return NextResponse.redirect(externalUrl(req,`/posts/${out.lastInsertRowid}`));}catch(e){const message=e instanceof Error?e.message:'post';if(json)return NextResponse.json({error:message},{status:400});return NextResponse.redirect(externalUrl(req,'/dashboard?error='+encodeURIComponent(message)));}}
diff --git a/app/api/sources/[id]/manage/route.ts b/app/api/sources/[id]/manage/route.ts
new file mode 100644
index 0000000..fb20bac
--- /dev/null
+++ b/app/api/sources/[id]/manage/route.ts
@@ -0,0 +1,37 @@
+import { NextResponse } from "next/server";
+import { requireUser } from "@/lib/auth";
+import { db } from "@/lib/db";
+import { externalUrl } from "@/lib/http";
+import { queuePull } from "@/lib/sync";
+
+export async function POST(req: Request, { params }: { params: Promise<{ id: string }> }) {
+  try {
+    const user = await requireUser(); const { id: rawId } = await params; const id = Number(rawId); const form = await req.formData(); const action = String(form.get("action") || "");
+    const source = db.prepare("SELECT id,user_id FROM sources WHERE id=?").get(id) as { id: number; user_id: number } | undefined;
+    const member = db.prepare("SELECT role FROM source_members WHERE source_id=? AND user_id=?").get(id, user.id);
+    if (!source || !member) throw new Error("Source not found");
+    const owner = source.user_id === user.id;
+    if (action === "rename") {
+      const name = String(form.get("name") || "").trim(); if (!owner || !name || name.length > 80) throw new Error("Only the owner can rename a source");
+      db.prepare("UPDATE sources SET name=? WHERE id=?").run(name, id);
+    } else if (action === "set-enabled") {
+      if (!owner) throw new Error("Only the owner can change source status"); const enabled = String(form.get("enabled")) === "1";
+      db.prepare("UPDATE sources SET is_enabled=?,disabled_at=CASE WHEN ? THEN NULL ELSE CURRENT_TIMESTAMP END,sync_status=CASE WHEN ? THEN 'pending' ELSE 'disabled' END WHERE id=?").run(enabled ? 1 : 0, enabled ? 1 : 0, enabled ? 1 : 0, id);
+      if (enabled) queuePull(id, "manual");
+    } else if (action === "leave") {
+      if (owner) throw new Error("Transfer ownership or delete the source before leaving");
+      db.prepare("DELETE FROM source_members WHERE source_id=? AND user_id=?").run(id, user.id);
+    } else if (action === "transfer") {
+      if (!owner) throw new Error("Only the owner can transfer ownership"); const username = String(form.get("username") || "").trim();
+      const target = db.prepare("SELECT u.id FROM users u JOIN source_members sm ON sm.user_id=u.id WHERE sm.source_id=? AND u.username=?").get(id, username) as { id: number } | undefined;
+      if (!target || target.id === user.id) throw new Error("Choose another existing member");
+      const transfer = db.transaction(() => { db.prepare("UPDATE sources SET user_id=? WHERE id=?").run(target.id, id); db.prepare("UPDATE source_members SET role='member' WHERE source_id=? AND user_id=?").run(id, user.id); db.prepare("UPDATE source_members SET role='owner' WHERE source_id=? AND user_id=?").run(id, target.id); });
+      transfer();
+    } else if (action === "delete") {
+      if (!owner) throw new Error("Only the owner can delete a source");
+      const remove = db.transaction(() => { db.prepare("DELETE FROM posts WHERE source_id=? AND origin='memos'").run(id); db.prepare("UPDATE posts SET source_id=NULL WHERE source_id=? AND origin='hub'").run(id); db.prepare("DELETE FROM sources WHERE id=?").run(id); });
+      remove();
+    } else throw new Error("Unknown source action");
+    return NextResponse.redirect(externalUrl(req, "/dashboard?source=updated"));
+  } catch (error) { return NextResponse.redirect(externalUrl(req, "/dashboard?error=" + encodeURIComponent(error instanceof Error ? error.message : "source"))); }
+}
diff --git a/app/api/sources/route.ts b/app/api/sources/route.ts
index af5f473..89e4fef 100644
--- a/app/api/sources/route.ts
+++ b/app/api/sources/route.ts
@@ -1,8 +1,29 @@
-import { NextResponse } from "next/server"; import { requireUser } from "@/lib/auth"; import { decrypt, encrypt } from "@/lib/crypto"; import { getMemosIdentity, verifyMemos } from "@/lib/memos"; import { db } from "@/lib/db"; import { externalUrl } from "@/lib/http";
-export async function POST(req: Request) { try { const user=await requireUser(); const form=await req.formData(); const name=String(form.get("name")||"").trim(); const rawBaseUrl=String(form.get("baseUrl")||"").trim(); const token=String(form.get("token")||"").trim(); let baseUrl=""; try { const url=new URL(rawBaseUrl); if(!['http:','https:'].includes(url.protocol)) throw new Error(); baseUrl=`${url.origin}${url.pathname.replace(/\/+$/,"")}`; } catch { throw new Error("Invalid source URL"); } if(!name||token.length<20) throw new Error("Invalid source"); await verifyMemos(baseUrl,token); const identity=await getMemosIdentity(baseUrl,token);
-  const legacySources=db.prepare("SELECT id,token_encrypted FROM sources WHERE base_url=? AND remote_user IS NULL").all(baseUrl) as {id:number;token_encrypted:string}[];
-  for(const legacy of legacySources){try{const legacyIdentity=await getMemosIdentity(baseUrl,decrypt(legacy.token_encrypted));db.prepare("UPDATE sources SET remote_user=? WHERE id=? AND remote_user IS NULL").run(legacyIdentity.name,legacy.id);}catch{ /* Keep unavailable legacy sources unchanged. */ }}
-  const shared=db.prepare("SELECT id FROM sources WHERE base_url=? AND remote_user=?").get(baseUrl,identity.name) as {id:number}|undefined;
-  if(shared){db.prepare("INSERT OR IGNORE INTO source_members(source_id,user_id) VALUES(?,?)").run(shared.id,user.id);return NextResponse.redirect(externalUrl(req,"/dashboard?source=shared"));}
-  const out=db.prepare("INSERT INTO sources(user_id,name,base_url,token_encrypted,remote_user,sync_status) VALUES(?,?,?,?,?, 'queued')").run(user.id,name,baseUrl,encrypt(token),identity.name);const sourceId=Number(out.lastInsertRowid);db.prepare("INSERT INTO source_members(source_id,user_id,role) VALUES(?,?,'owner')").run(sourceId,user.id);db.prepare("INSERT INTO sync_jobs(source_id,kind) VALUES(?, 'pull')").run(sourceId);return NextResponse.redirect(externalUrl(req,"/dashboard?source=connected"));
- } catch(e){ return NextResponse.redirect(externalUrl(req,"/dashboard?error="+encodeURIComponent(e instanceof Error?e.message:"source"))); } }
+import { NextResponse } from "next/server";
+import { requireUser } from "@/lib/auth";
+import { decrypt, encrypt } from "@/lib/crypto";
+import { db } from "@/lib/db";
+import { externalUrl } from "@/lib/http";
+import { getMemosIdentity, verifyMemos } from "@/lib/memos";
+import { queuePull } from "@/lib/sync";
+
+export async function POST(req: Request) {
+  try {
+    const user = await requireUser(); const form = await req.formData();
+    const name = String(form.get("name") || "").trim(); const rawBaseUrl = String(form.get("baseUrl") || "").trim(); const token = String(form.get("token") || "").trim();
+    let baseUrl = "";
+    try { const url = new URL(rawBaseUrl); if (!['http:', 'https:'].includes(url.protocol)) throw new Error(); baseUrl = `${url.origin}${url.pathname.replace(/\/+$/, "")}`; } catch { throw new Error("Invalid source URL"); }
+    if (!name || token.length < 20) throw new Error("Invalid source");
+    await verifyMemos(baseUrl, token); const identity = await getMemosIdentity(baseUrl, token);
+    const legacySources = db.prepare("SELECT id,token_encrypted FROM sources WHERE base_url=? AND remote_user IS NULL").all(baseUrl) as { id: number; token_encrypted: string }[];
+    for (const legacy of legacySources) {
+      try { const legacyIdentity = await getMemosIdentity(baseUrl, decrypt(legacy.token_encrypted)); db.prepare("UPDATE sources SET remote_user=? WHERE id=? AND remote_user IS NULL").run(legacyIdentity.name, legacy.id); } catch { /* Retry on a future connection. */ }
+    }
+    const shared = db.prepare("SELECT id FROM sources WHERE base_url=? AND remote_user=?").get(baseUrl, identity.name) as { id: number } | undefined;
+    if (shared) { db.prepare("INSERT OR IGNORE INTO source_members(source_id,user_id) VALUES(?,?)").run(shared.id, user.id); return NextResponse.redirect(externalUrl(req, "/dashboard?source=shared")); }
+    const out = db.prepare("INSERT INTO sources(user_id,name,base_url,token_encrypted,remote_user,sync_status) VALUES(?,?,?,?,?, 'queued')").run(user.id, name, baseUrl, encrypt(token), identity.name);
+    const sourceId = Number(out.lastInsertRowid);
+    db.prepare("INSERT INTO source_members(source_id,user_id,role) VALUES(?,?,'owner')").run(sourceId, user.id);
+    queuePull(sourceId, "source-created");
+    return NextResponse.redirect(externalUrl(req, "/dashboard?source=connected"));
+  } catch (error) { return NextResponse.redirect(externalUrl(req, "/dashboard?error=" + encodeURIComponent(error instanceof Error ? error.message : "source"))); }
+}
diff --git a/app/api/sync/route.ts b/app/api/sync/route.ts
index 61fe2a7..5bbe61a 100644
--- a/app/api/sync/route.ts
+++ b/app/api/sync/route.ts
@@ -1,2 +1,15 @@
-import { NextResponse } from "next/server"; import { requireUser } from "@/lib/auth"; import { db } from "@/lib/db"; import { externalUrl } from "@/lib/http";
-export async function POST(req:Request){try{const user=await requireUser();const f=await req.formData();const sourceId=Number(f.get('sourceId'));const source=db.prepare('SELECT s.id FROM sources s JOIN source_members sm ON sm.source_id=s.id WHERE s.id=? AND sm.user_id=?').get(sourceId,user.id);if(!source)throw 0;db.prepare("INSERT INTO sync_jobs(source_id,kind) VALUES(?, 'pull')").run(sourceId);return NextResponse.redirect(externalUrl(req,'/dashboard'));}catch{return NextResponse.redirect(externalUrl(req,'/'));}}
+import { NextResponse } from "next/server";
+import { requireUser } from "@/lib/auth";
+import { db } from "@/lib/db";
+import { externalUrl } from "@/lib/http";
+import { queuePull } from "@/lib/sync";
+
+export async function POST(req: Request) {
+  try {
+    const user = await requireUser(); const form = await req.formData(); const sourceId = Number(form.get("sourceId"));
+    const source = db.prepare("SELECT s.id FROM sources s JOIN source_members sm ON sm.source_id=s.id WHERE s.id=? AND sm.user_id=? AND s.is_enabled=1").get(sourceId, user.id);
+    if (!source) throw new Error("Source not available");
+    const created = queuePull(sourceId, "manual");
+    return NextResponse.redirect(externalUrl(req, `/dashboard?sync=${created ? "queued" : "already-queued"}`));
+  } catch (error) { return NextResponse.redirect(externalUrl(req, "/dashboard?error=" + encodeURIComponent(error instanceof Error ? error.message : "sync"))); }
+}
diff --git a/app/api/sync/webhook/[sourceId]/[secret]/route.ts b/app/api/sync/webhook/[sourceId]/[secret]/route.ts
index 17dfe89..b816eef 100644
--- a/app/api/sync/webhook/[sourceId]/[secret]/route.ts
+++ b/app/api/sync/webhook/[sourceId]/[secret]/route.ts
@@ -2,17 +2,18 @@ import { NextResponse } from "next/server";
 import { db } from "@/lib/db";
 import { withinRateLimit } from "@/lib/rate-limit";
 import { webhookSecretMatches } from "@/lib/webhook";
+import { queuePull } from "@/lib/sync";
 
 export async function POST(request: Request, { params }: { params: Promise<{ sourceId: string; secret: string }> }) {
   const { sourceId, secret } = await params;
   const id = Number(sourceId);
-  const source = db.prepare("SELECT id, webhook_secret_hash FROM sources WHERE id=?").get(id) as { id: number; webhook_secret_hash: string | null } | undefined;
+  const source = db.prepare("SELECT id, webhook_secret_hash FROM sources WHERE id=? AND is_enabled=1").get(id) as { id: number; webhook_secret_hash: string | null } | undefined;
   if (!source || !webhookSecretMatches(secret, source.webhook_secret_hash)) return NextResponse.json({ error: "Not found" }, { status: 404 });
   const forwarded = request.headers.get("x-forwarded-for")?.split(",")[0].trim() || "unknown";
   if (!withinRateLimit(`webhook:${id}:${forwarded}`)) return NextResponse.json({ error: "Too many requests" }, { status: 429 });
   let payload: unknown = {};
   try { payload = await request.json(); } catch { /* Memos payload is optional; a pull reconciles source state. */ }
   db.prepare("UPDATE sources SET last_webhook_at=CURRENT_TIMESTAMP WHERE id=?").run(id);
-  db.prepare("INSERT INTO sync_jobs(source_id,kind,payload_json) VALUES(?, 'pull', ?)").run(id, JSON.stringify(payload));
-  return NextResponse.json({ ok: true });
+  const queued = queuePull(id, "webhook", payload);
+  return NextResponse.json({ ok: true, queued });
 }
diff --git a/app/dashboard/page.tsx b/app/dashboard/page.tsx
index 2a556d0..18caf91 100644
--- a/app/dashboard/page.tsx
+++ b/app/dashboard/page.tsx
@@ -1,3 +1,35 @@
-import { redirect } from "next/navigation"; import { getSession } from "@/lib/auth"; import { db } from "@/lib/db"; import { PublishForm } from "./publish-form"; import { WebhookControl } from "./webhook-control";
-export const dynamic="force-dynamic";
-export default async function Dashboard({searchParams}:{searchParams:Promise<{error?:string;source?:string}>}){const query=await searchParams;const user=await getSession();if(!user)redirect('/login');const sources=db.prepare('SELECT s.id,s.name,s.base_url,s.sync_status,s.last_synced_at,s.last_error,s.webhook_secret_hash,s.last_webhook_at,s.user_id AS owner_id FROM sources s JOIN source_members sm ON sm.source_id=s.id WHERE sm.user_id=? ORDER BY s.id DESC').all(user.id) as any[];return <><h1>控制台</h1>{query.error&&<p className="error">{query.error}</p>}{query.source==='shared'?<p>你已加入既有的共享 Memos 來源，不會重複同步貼文。</p>:query.source&&<p>來源已連接，首次同步已排入佇列。</p>}<section className="card"><h2>發佈到自己的 Memos</h2>{sources.length?<PublishForm sources={sources}/>:<p className="muted">請先連接一個 Memos 來源。</p>}</section><section className="card"><h2>連接 Memos</h2><form action="/api/sources" method="post"><label>顯示名稱<input name="name" required placeholder="我的 Memos"/></label><label>Memos 網址<input name="baseUrl" type="url" required placeholder="https://memos.example.com"/></label><label>Personal Access Token<input name="token" type="password" required/></label><button>驗證並連接</button></form><p className="muted">Token 會使用伺服器金鑰加密保存。同一個 Memos 帳號與網址會自動共用來源，不會建立重複貼文。</p></section><section><h2>已連接來源</h2>{sources.map(s=><article className="card" key={s.id}><div className="space"><strong>{s.name}</strong><span className="tag">{s.sync_status}</span></div><p className="meta">來源 ID：{s.id}<br/>{s.base_url}<br/>上次同步：{s.last_synced_at||'尚未完成'}<br/>Webhook：{s.webhook_secret_hash?(s.last_webhook_at?`最近收到：${new Date(s.last_webhook_at+'Z').toLocaleString('zh-TW')}`:'已建立 URL，尚未收到呼叫'):'尚未建立 URL'}{s.last_error&&<><br/><span className="error">{s.last_error}</span></>}</p>{s.owner_id===user.id?<WebhookControl sourceId={s.id} configured={Boolean(s.webhook_secret_hash)}/>:<p className="meta">這是共享來源；只有建立者可以管理 webhook。</p>}<form action="/api/sync" method="post"><input type="hidden" name="sourceId" value={s.id}/><button>立即同步</button></form></article>)}</section></>}
+import { redirect } from "next/navigation";
+import { getSession } from "@/lib/auth";
+import { db } from "@/lib/db";
+import { PublishForm } from "./publish-form";
+import { WebhookControl } from "./webhook-control";
+
+type Source = { id: number; name: string; base_url: string; sync_status: string; last_synced_at: string | null; last_error: string | null; webhook_secret_hash: string | null; last_webhook_at: string | null; owner_id: number; is_enabled: number; disabled_at: string | null };
+type Job = { id: number; kind: string; trigger: string | null; status: string; attempts: number; last_error: string | null; created_at: string; finished_at: string | null };
+
+export const dynamic = "force-dynamic";
+
+export default async function Dashboard({ searchParams }: { searchParams: Promise<{ error?: string; source?: string; sync?: string }> }) {
+  const query = await searchParams; const user = await getSession(); if (!user) redirect("/login");
+  const sourceRows = db.prepare("SELECT s.id,s.name,s.base_url,s.sync_status,s.last_synced_at,s.last_error,s.webhook_secret_hash,s.last_webhook_at,s.user_id AS owner_id,s.is_enabled,s.disabled_at FROM sources s JOIN source_members sm ON sm.source_id=s.id WHERE sm.user_id=? ORDER BY s.id DESC").all(user.id) as Source[];
+  const sources = sourceRows.map((source) => ({ ...source, members: db.prepare("SELECT u.username,u.id,sm.role FROM source_members sm JOIN users u ON u.id=sm.user_id WHERE sm.source_id=? ORDER BY sm.role DESC,u.username").all(source.id) as { username: string; id: number; role: string }[], jobs: db.prepare("SELECT id,kind,trigger,status,attempts,last_error,created_at,finished_at FROM sync_jobs WHERE source_id=? ORDER BY id DESC LIMIT 5").all(source.id) as Job[] }));
+  const publishSources = sources.filter((source) => source.is_enabled);
+  return <>
+    <h1>控制台</h1>
+    {query.error && <p className="error">{query.error}</p>}
+    {query.source === "shared" ? <p>你已加入既有的共享 Memos 來源，不會重複同步貼文。</p> : query.source === "updated" ? <p>來源設定已更新。</p> : query.source && <p>來源已連接，首次同步已排入佇列。</p>}
+    {query.sync === "queued" && <p>同步已排入佇列。</p>}{query.sync === "already-queued" && <p className="muted">此來源已有同步工作處理中，不重複排入。</p>}
+    <section className="card"><h2>發佈到自己的 Memos</h2>{publishSources.length ? <PublishForm sources={publishSources} /> : <p className="muted">請先連接並啟用一個 Memos 來源。</p>}</section>
+    <section className="card"><h2>連接 Memos</h2><form action="/api/sources" method="post"><label>顯示名稱<input name="name" required placeholder="我的 Memos" /></label><label>Memos 網址<input name="baseUrl" type="url" required placeholder="https://memos.example.com" /></label><label>Personal Access Token<input name="token" type="password" required /></label><button>驗證並連接</button></form><p className="muted">Token 會使用伺服器金鑰加密保存。同一個 Memos 帳號與網址會自動共用來源，不會建立重複貼文。</p></section>
+    <section><h2>已連接來源</h2>{sources.map((source) => <article className="card" key={source.id}>
+      <div className="space"><strong>{source.name}</strong><span className="tag">{source.is_enabled ? source.sync_status : "disabled"}</span></div>
+      <p className="meta">來源 ID：{source.id}<br />{source.base_url}<br />成員：{source.members.map((member) => `${member.username}${member.role === "owner" ? "（建立者）" : ""}`).join("、")}<br />上次同步：{source.last_synced_at || "尚未完成"}<br />Webhook：{source.webhook_secret_hash ? (source.last_webhook_at ? `最近收到：${new Date(source.last_webhook_at + "Z").toLocaleString("zh-TW")}` : "已建立 URL，尚未收到呼叫") : "尚未建立 URL"}{!source.is_enabled && <><br />已停用：{source.disabled_at ? new Date(source.disabled_at + "Z").toLocaleString("zh-TW") : "是"}</>}{source.last_error && <><br /><span className="error">{source.last_error}</span></>}</p>
+      {source.owner_id === user.id ? <>
+        <WebhookControl sourceId={source.id} configured={Boolean(source.webhook_secret_hash)} />
+        <details><summary>來源管理</summary><form action={`/api/sources/${source.id}/manage`} method="post"><input type="hidden" name="action" value="rename" /><label>顯示名稱<input name="name" defaultValue={source.name} required maxLength={80} /></label><button>儲存名稱</button></form><form action={`/api/sources/${source.id}/manage`} method="post"><input type="hidden" name="action" value="set-enabled" /><input type="hidden" name="enabled" value={source.is_enabled ? "0" : "1"} /><button className={source.is_enabled ? "danger" : ""}>{source.is_enabled ? "停用來源" : "啟用來源"}</button></form>{source.members.length > 1 && <form action={`/api/sources/${source.id}/manage`} method="post"><input type="hidden" name="action" value="transfer" /><label>轉移建立者<select name="username" required defaultValue=""> <option value="" disabled>選擇成員</option>{source.members.filter((member) => member.id !== user.id).map((member) => <option key={member.id} value={member.username}>{member.username}</option>)}</select></label><button>轉移所有權</button></form>}<form action={`/api/sources/${source.id}/manage`} method="post"><input type="hidden" name="action" value="delete" /><button className="danger">刪除來源與遠端鏡像貼文</button></form></details>
+      </> : <form action={`/api/sources/${source.id}/manage`} method="post"><input type="hidden" name="action" value="leave" /><button className="danger">離開共享來源</button></form>}
+      <form action="/api/sync" method="post"><input type="hidden" name="sourceId" value={source.id} /><button disabled={!source.is_enabled}>{source.is_enabled ? "立即同步" : "來源已停用"}</button></form>
+      <details><summary>最近同步工作</summary>{source.jobs.length ? <ul className="job-list">{source.jobs.map((job) => <li key={job.id}><strong>{job.kind}</strong> · {job.trigger || "legacy"} · <span className="tag">{job.status}</span> · 嘗試 {job.attempts} 次<br /><span className="meta">建立：{new Date(job.created_at + "Z").toLocaleString("zh-TW")}{job.finished_at && `；完成：${new Date(job.finished_at + "Z").toLocaleString("zh-TW")}`}</span>{job.last_error && <><br /><span className="error">{job.last_error}</span></>}</li>)}</ul> : <p className="muted">尚無同步工作。</p>}</details>
+    </article>)}</section>
+  </>;
+}
diff --git a/app/layout.tsx b/app/layout.tsx
index 218316b..cd12fcf 100644
--- a/app/layout.tsx
+++ b/app/layout.tsx
@@ -4,5 +4,5 @@ import { getSession } from "@/lib/auth";
 export const metadata = { title: "Mebbling", description: "Your Memos hub" };
 export default async function RootLayout({ children }: { children: React.ReactNode }) {
   const user = await getSession();
-  return <html lang="zh-Hant"><body><header><Link href="/" className="brand">Mebbling</Link><nav><Link href="/">探索</Link>{user ? <><Link href="/dashboard">控制台</Link><form action="/api/auth/logout" method="post"><button>登出</button></form></> : <><Link href="/login">登入</Link><Link href="/register">註冊</Link></>}</nav></header><main>{children}</main></body></html>;
+  return <html lang="zh-Hant"><body><header><Link href="/" className="brand">Mebbling</Link><nav><Link href="/">探索</Link>{user ? <><Link href="/dashboard">控制台</Link><Link href="/account">帳號</Link>{user.role === "admin" && <Link href="/admin">管理</Link>}<form action="/api/auth/logout" method="post"><button>登出</button></form></> : <><Link href="/login">登入</Link><Link href="/register">註冊</Link></>}</nav></header><main>{children}</main></body></html>;
 }
diff --git a/docs/OPERATIONS.md b/docs/OPERATIONS.md
new file mode 100644
index 0000000..9b3d3e9
--- /dev/null
+++ b/docs/OPERATIONS.md
@@ -0,0 +1,32 @@
+# 維運：備份、還原與資料庫升級
+
+## 備份
+
+在專案根目錄執行：
+
+```bash
+./scripts/backup.sh
+```
+
+腳本會在 `data/backups/YYYYMMDD-HHMMSS/` 建立兩個檔案：
+
+- `hub.db`：由正在執行的 SQLite 資料庫建立的一致性備份。
+- `uploads.tar.gz`：Hub 本機上傳的附件。
+
+`data/backups/` 已由 Git 排除。請將備份複製到另一台主機或加密的雲端儲存；只留在同一台機器不算完整備份。
+
+## 還原
+
+1. 停止服務：`docker compose down`。
+2. 備份目前的 `data/hub.db` 與 `public/uploads/`，以免操作失誤。
+3. 將選定備份中的 `hub.db` 覆蓋為 `data/hub.db`。
+4. 解開附件：`tar -xzf data/backups/<時間>/uploads.tar.gz -C public`。
+5. 重新啟動：`docker compose up -d`。
+
+請始終一起還原資料庫與附件，否則貼文中的附件連結可能失效。
+
+## Schema migration
+
+資料庫 schema 由 `lib/db.ts` 管理。每個欄位 migration 在 `schema_migrations` 表中記錄版本與套用時間，啟動 Web 或 Worker 時會自動執行尚未套用的安全 migration。
+
+升級 Mebbling 前請先執行備份。若新版本在測試環境正常運作，再升級正式資料；不支援直接以舊程式碼讀取已升級 schema 的保證。
diff --git a/lib/db.ts b/lib/db.ts
index dfb85f5..2204e6a 100644
--- a/lib/db.ts
+++ b/lib/db.ts
@@ -18,6 +18,7 @@ CREATE TABLE IF NOT EXISTS sources (
   id INTEGER PRIMARY KEY, user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
   name TEXT NOT NULL, base_url TEXT NOT NULL, token_encrypted TEXT NOT NULL, remote_user TEXT,
   webhook_supported INTEGER NOT NULL DEFAULT 0, sync_status TEXT NOT NULL DEFAULT 'pending', last_synced_at TEXT, last_error TEXT,
+  is_enabled INTEGER NOT NULL DEFAULT 1, disabled_at TEXT,
   created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP, UNIQUE(user_id, base_url)
 );
 CREATE TABLE IF NOT EXISTS posts (
@@ -44,7 +45,8 @@ CREATE TABLE IF NOT EXISTS reports (
 CREATE TABLE IF NOT EXISTS sync_jobs (
   id INTEGER PRIMARY KEY, source_id INTEGER NOT NULL REFERENCES sources(id) ON DELETE CASCADE,
   kind TEXT NOT NULL, payload_json TEXT, status TEXT NOT NULL DEFAULT 'queued', attempts INTEGER NOT NULL DEFAULT 0,
-  last_error TEXT, created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP, run_after TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+  trigger TEXT NOT NULL DEFAULT 'manual', last_error TEXT, created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  started_at TEXT, finished_at TEXT, run_after TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
 CREATE TABLE IF NOT EXISTS source_members (
   source_id INTEGER NOT NULL REFERENCES sources(id) ON DELETE CASCADE,
@@ -55,18 +57,27 @@ CREATE TABLE IF NOT EXISTS source_members (
 CREATE INDEX IF NOT EXISTS posts_public_idx ON posts(visibility, hidden, created_at DESC);
 CREATE INDEX IF NOT EXISTS sync_jobs_idx ON sync_jobs(status, run_after);
 CREATE UNIQUE INDEX IF NOT EXISTS source_remote_identity_unique ON sources(base_url, remote_user) WHERE remote_user IS NOT NULL;
+CREATE TABLE IF NOT EXISTS schema_migrations (
+  version INTEGER PRIMARY KEY, applied_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
 `);
 
 db.exec("INSERT OR IGNORE INTO source_members(source_id,user_id,role) SELECT id,user_id,'owner' FROM sources");
 
-const sourceColumns = db.prepare("PRAGMA table_info(sources)").all() as { name: string }[];
-if (!sourceColumns.some((column) => column.name === "webhook_secret_hash")) {
-  db.exec("ALTER TABLE sources ADD COLUMN webhook_secret_hash TEXT");
-}
-if (!sourceColumns.some((column) => column.name === "last_webhook_at")) {
-  db.exec("ALTER TABLE sources ADD COLUMN last_webhook_at TEXT");
+function applyColumnMigration(version: number, table: string, column: string, sql: string) {
+  const columns = db.prepare(`PRAGMA table_info(${table})`).all() as { name: string }[];
+  if (!columns.some((item) => item.name === column)) db.exec(sql);
+  db.prepare("INSERT OR IGNORE INTO schema_migrations(version) VALUES(?)").run(version);
 }
 
+applyColumnMigration(1, "sources", "webhook_secret_hash", "ALTER TABLE sources ADD COLUMN webhook_secret_hash TEXT");
+applyColumnMigration(2, "sources", "last_webhook_at", "ALTER TABLE sources ADD COLUMN last_webhook_at TEXT");
+applyColumnMigration(3, "sources", "is_enabled", "ALTER TABLE sources ADD COLUMN is_enabled INTEGER NOT NULL DEFAULT 1");
+applyColumnMigration(4, "sources", "disabled_at", "ALTER TABLE sources ADD COLUMN disabled_at TEXT");
+applyColumnMigration(5, "sync_jobs", "trigger", "ALTER TABLE sync_jobs ADD COLUMN trigger TEXT NOT NULL DEFAULT 'manual'");
+applyColumnMigration(6, "sync_jobs", "started_at", "ALTER TABLE sync_jobs ADD COLUMN started_at TEXT");
+applyColumnMigration(7, "sync_jobs", "finished_at", "ALTER TABLE sync_jobs ADD COLUMN finished_at TEXT");
+
 const admin = process.env.ADMIN_USERNAME;
 const adminPassword = process.env.ADMIN_PASSWORD;
 if (admin && adminPassword) {
diff --git a/lib/sync.ts b/lib/sync.ts
new file mode 100644
index 0000000..d31b25c
--- /dev/null
+++ b/lib/sync.ts
@@ -0,0 +1,16 @@
+import { db } from "@/lib/db";
+
+export type SyncTrigger = "manual" | "webhook" | "scheduled" | "source-created";
+
+/** Queue one pull per source at a time. Returns true only when a new job was created. */
+export function queuePull(sourceId: number, trigger: SyncTrigger, payload: unknown = {}) {
+  const result = db.prepare(`
+    INSERT INTO sync_jobs(source_id,kind,payload_json,trigger)
+    SELECT ?, 'pull', ?, ?
+    WHERE NOT EXISTS (
+      SELECT 1 FROM sync_jobs
+      WHERE source_id=? AND kind='pull' AND status IN ('queued','running')
+    )
+  `).run(sourceId, JSON.stringify(payload), trigger, sourceId);
+  return result.changes === 1;
+}
diff --git a/package-lock.json b/package-lock.json
index 41e7eb5..1d886ac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,13 +1,13 @@
 {
   "name": "mebbling",
-  "version": "1.0.0",
+  "version": "0.2.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mebbling",
-      "version": "1.0.0",
-      "license": "ISC",
+      "version": "0.2.0",
+      "license": "PolyForm-Noncommercial-1.0.0",
       "dependencies": {
         "bcryptjs": "^3.0.3",
         "better-sqlite3": "^12.11.1",
diff --git a/package.json b/package.json
index 8c33253..fa183b9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mebbling",
-  "version": "1.0.0",
+  "version": "0.2.0",
   "description": "",
   "private": true,
   "scripts": {
@@ -8,11 +8,11 @@
     "build": "HUB_BUILD=1 next build",
     "start": "next start",
     "worker": "tsx worker/index.ts",
-    "test": "tsx --test tests/**/*.test.ts"
+    "test": "TMPDIR=/tmp tsx --test tests/**/*.test.ts"
   },
   "keywords": [],
   "author": "",
-  "license": "ISC",
+  "license": "PolyForm-Noncommercial-1.0.0",
   "dependencies": {
     "bcryptjs": "^3.0.3",
     "better-sqlite3": "^12.11.1",
diff --git a/scripts/backup.sh b/scripts/backup.sh
new file mode 100644
index 0000000..2c82928
--- /dev/null
+++ b/scripts/backup.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Creates a consistent SQLite backup through the running web container, then archives Hub uploads.
+root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$root_dir"
+stamp="$(date +%Y%m%d-%H%M%S)"
+backup_dir="data/backups/$stamp"
+mkdir -p "$backup_dir"
+
+docker compose exec -T -e BACKUP_PATH="/app/data/backups/$stamp/hub.db" web node -e '
+  const Database = require("better-sqlite3");
+  const db = new Database(process.env.DATABASE_PATH);
+  db.backup(process.env.BACKUP_PATH).then(() => db.close()).catch((error) => { console.error(error); process.exit(1); });
+'
+
+tar -czf "$backup_dir/uploads.tar.gz" -C public uploads
+printf 'Created backup: %s\n' "$backup_dir"
diff --git a/tests/sync.test.ts b/tests/sync.test.ts
new file mode 100644
index 0000000..0097f8f
--- /dev/null
+++ b/tests/sync.test.ts
@@ -0,0 +1,25 @@
+import assert from "node:assert/strict";
+import { after, test } from "node:test";
+import { randomUUID } from "node:crypto";
+import { rmSync } from "node:fs";
+
+const databasePath = `/tmp/mebbling-sync-${randomUUID()}.db`;
+process.env.DATABASE_PATH = databasePath;
+delete process.env.HUB_BUILD;
+
+let database: typeof import("../lib/db").db | undefined;
+
+after(() => { database?.close(); rmSync(databasePath, { force: true }); rmSync(`${databasePath}-wal`, { force: true }); rmSync(`${databasePath}-shm`, { force: true }); });
+
+test("applies tracked migrations and deduplicates active pull jobs", async () => {
+  const { db } = await import("../lib/db"); database = db;
+  const { queuePull } = await import("../lib/sync");
+  const migrations = db.prepare("SELECT version FROM schema_migrations ORDER BY version").all() as { version: number }[];
+  assert.deepEqual(migrations.map((item) => item.version), [1, 2, 3, 4, 5, 6, 7]);
+  const userId = Number(db.prepare("INSERT INTO users(username,password_hash) VALUES('sync-test','hash')").run().lastInsertRowid);
+  const sourceId = Number(db.prepare("INSERT INTO sources(user_id,name,base_url,token_encrypted,is_enabled) VALUES(?,?,?,?,1)").run(userId, "Test", "https://example.test", "encrypted").lastInsertRowid);
+  assert.equal(queuePull(sourceId, "manual"), true);
+  assert.equal(queuePull(sourceId, "webhook", { event: "memo.updated" }), false);
+  const jobs = db.prepare("SELECT kind,trigger,status FROM sync_jobs WHERE source_id=?").all(sourceId) as { kind: string; trigger: string; status: string }[];
+  assert.deepEqual(jobs, [{ kind: "pull", trigger: "manual", status: "queued" }]);
+});
diff --git a/worker/index.ts b/worker/index.ts
index 37b983d..8d42154 100644
--- a/worker/index.ts
+++ b/worker/index.ts
@@ -1,8 +1,61 @@
-import { db } from "../lib/db"; import { decrypt } from "../lib/crypto"; import { createMemo, createRemoteFile, listMemos, setMemoAttachments } from "../lib/memos"; import { readFile } from "node:fs/promises"; import { join } from "node:path";
-type Source={id:number;user_id:number;base_url:string;token_encrypted:string};
-function upsertRemote(source:Source,m:any){const tags=JSON.stringify(m.tags||[]),attachments=JSON.stringify(m.attachments||m.resources||[]);db.prepare(`INSERT INTO posts(source_id,author_id,remote_memo_name,content,visibility,tags_json,attachments_json,origin,remote_created_at,remote_updated_at,sync_status,hidden) VALUES(?,?,?,?,?,?,?,?,?,?, 'synced',0) ON CONFLICT(source_id,remote_memo_name) DO UPDATE SET content=excluded.content,visibility=excluded.visibility,tags_json=excluded.tags_json,attachments_json=excluded.attachments_json,remote_updated_at=excluded.remote_updated_at,hidden=0,updated_at=CURRENT_TIMESTAMP`).run(source.id,source.user_id,m.name,m.content,m.visibility,tags,attachments,'memos',m.createTime||null,m.updateTime||null);}
-async function pull(source:Source){const memos=await listMemos(source.base_url,decrypt(source.token_encrypted));for(const memo of memos)upsertRemote(source,memo);const names=memos.map(m=>m.name);if(names.length){const placeholders=names.map(()=>'?').join(',');db.prepare(`UPDATE posts SET hidden=1,updated_at=CURRENT_TIMESTAMP WHERE source_id=? AND remote_memo_name IS NOT NULL AND remote_memo_name NOT IN (${placeholders})`).run(source.id,...names);}else{db.prepare("UPDATE posts SET hidden=1,updated_at=CURRENT_TIMESTAMP WHERE source_id=? AND remote_memo_name IS NOT NULL").run(source.id);}db.prepare("UPDATE sources SET sync_status='synced',last_synced_at=CURRENT_TIMESTAMP,last_error=NULL WHERE id=?").run(source.id);}
-async function push(source:Source,payload:any){const post=db.prepare('SELECT * FROM posts WHERE id=? AND source_id=?').get(payload.postId,source.id) as any;if(!post)return;const token=decrypt(source.token_encrypted);const localAttachments=JSON.parse(post.attachments_json||'[]') as {name:string;url:string;type:string;size:number}[];const attachments=[] as unknown[],resources=[] as unknown[];for(const attachment of localAttachments){const content=(await readFile(join(process.cwd(),'public',attachment.url))).toString('base64');const remote=await createRemoteFile(source.base_url,token,{filename:attachment.name,content,type:attachment.type||'application/octet-stream',size:String(attachment.size)});(remote.kind==='attachment'?attachments:resources).push(remote.value);}const memo=await createMemo(source.base_url,token,{content:post.content,visibility:post.visibility,resources});if(attachments.length)await setMemoAttachments(source.base_url,token,memo.name,attachments);db.prepare("UPDATE posts SET remote_memo_name=?,remote_created_at=?,remote_updated_at=?,sync_status='synced',updated_at=CURRENT_TIMESTAMP WHERE id=?").run(memo.name,memo.createTime||null,memo.updateTime||null,post.id);}
-async function run(){const job=db.prepare("SELECT * FROM sync_jobs WHERE status='queued' AND run_after<=CURRENT_TIMESTAMP ORDER BY id LIMIT 1").get() as any;if(!job)return;db.prepare("UPDATE sync_jobs SET status='running',attempts=attempts+1 WHERE id=?").run(job.id);const source=db.prepare('SELECT * FROM sources WHERE id=?').get(job.source_id) as Source;try{if(job.kind==='pull')await pull(source);else if(job.kind==='push')await push(source,JSON.parse(job.payload_json||'{}'));db.prepare("UPDATE sync_jobs SET status='done' WHERE id=?").run(job.id);db.prepare("UPDATE sources SET sync_status='synced',last_error=NULL,last_synced_at=CURRENT_TIMESTAMP WHERE id=?").run(source.id);}catch(error){const message=error instanceof Error?error.message:'Sync failure';db.prepare("UPDATE sync_jobs SET status=CASE WHEN attempts>=5 THEN 'failed' ELSE 'queued' END,last_error=?,run_after=datetime('now','+5 minutes') WHERE id=?").run(message,job.id);db.prepare("UPDATE sources SET sync_status='error',last_error=? WHERE id=?").run(message,source.id);}}
-function schedule(){const interval=Number(process.env.SYNC_INTERVAL_MINUTES||60);db.prepare("INSERT INTO sync_jobs(source_id,kind) SELECT id,'pull' FROM sources WHERE COALESCE(last_synced_at,'1970-01-01') < datetime('now', ?) AND NOT EXISTS (SELECT 1 FROM sync_jobs j WHERE j.source_id=sources.id AND j.kind='pull' AND j.status IN ('queued','running'))").run(`-${interval} minutes`);}
-setInterval(()=>{schedule();void run();},5000);schedule();void run();
+import { readFile } from "node:fs/promises";
+import { join } from "node:path";
+import { db } from "../lib/db";
+import { decrypt } from "../lib/crypto";
+import { createMemo, createRemoteFile, listMemos, setMemoAttachments } from "../lib/memos";
+
+type Source = { id: number; user_id: number; base_url: string; token_encrypted: string; is_enabled: number };
+type Job = { id: number; source_id: number; kind: "pull" | "push"; payload_json: string | null; attempts: number };
+
+function upsertRemote(source: Source, memo: any) {
+  const tags = JSON.stringify(memo.tags || []), attachments = JSON.stringify(memo.attachments || memo.resources || []);
+  db.prepare(`INSERT INTO posts(source_id,author_id,remote_memo_name,content,visibility,tags_json,attachments_json,origin,remote_created_at,remote_updated_at,sync_status,hidden) VALUES(?,?,?,?,?,?,?,?,?,?, 'synced',0) ON CONFLICT(source_id,remote_memo_name) DO UPDATE SET content=excluded.content,visibility=excluded.visibility,tags_json=excluded.tags_json,attachments_json=excluded.attachments_json,remote_updated_at=excluded.remote_updated_at,hidden=0,updated_at=CURRENT_TIMESTAMP`).run(source.id, source.user_id, memo.name, memo.content, memo.visibility, tags, attachments, "memos", memo.createTime || null, memo.updateTime || null);
+}
+
+async function pull(source: Source) {
+  const memos = await listMemos(source.base_url, decrypt(source.token_encrypted));
+  for (const memo of memos) upsertRemote(source, memo);
+  const names = memos.map((memo) => memo.name);
+  if (names.length) { const placeholders = names.map(() => "?").join(","); db.prepare(`UPDATE posts SET hidden=1,updated_at=CURRENT_TIMESTAMP WHERE source_id=? AND remote_memo_name IS NOT NULL AND remote_memo_name NOT IN (${placeholders})`).run(source.id, ...names); }
+  else db.prepare("UPDATE posts SET hidden=1,updated_at=CURRENT_TIMESTAMP WHERE source_id=? AND remote_memo_name IS NOT NULL").run(source.id);
+  db.prepare("UPDATE sources SET sync_status='synced',last_synced_at=CURRENT_TIMESTAMP,last_error=NULL WHERE id=?").run(source.id);
+}
+
+async function push(source: Source, payload: any) {
+  const post = db.prepare("SELECT * FROM posts WHERE id=? AND source_id=?").get(payload.postId, source.id) as any;
+  if (!post) return;
+  const token = decrypt(source.token_encrypted); const localAttachments = JSON.parse(post.attachments_json || "[]") as { name: string; url: string; type: string; size: number }[];
+  const attachments: unknown[] = [], resources: unknown[] = [];
+  for (const attachment of localAttachments) {
+    const content = (await readFile(join(process.cwd(), "public", attachment.url))).toString("base64");
+    const remote = await createRemoteFile(source.base_url, token, { filename: attachment.name, content, type: attachment.type || "application/octet-stream", size: String(attachment.size) });
+    (remote.kind === "attachment" ? attachments : resources).push(remote.value);
+  }
+  const memo = await createMemo(source.base_url, token, { content: post.content, visibility: post.visibility, resources });
+  if (attachments.length) await setMemoAttachments(source.base_url, token, memo.name, attachments);
+  db.prepare("UPDATE posts SET remote_memo_name=?,remote_created_at=?,remote_updated_at=?,sync_status='synced',updated_at=CURRENT_TIMESTAMP WHERE id=?").run(memo.name, memo.createTime || null, memo.updateTime || null, post.id);
+}
+
+async function run() {
+  const job = db.prepare("SELECT * FROM sync_jobs WHERE status='queued' AND run_after<=CURRENT_TIMESTAMP ORDER BY id LIMIT 1").get() as Job | undefined;
+  if (!job) return;
+  db.prepare("UPDATE sync_jobs SET status='running',attempts=attempts+1,started_at=CURRENT_TIMESTAMP WHERE id=?").run(job.id);
+  const source = db.prepare("SELECT * FROM sources WHERE id=?").get(job.source_id) as Source | undefined;
+  if (!source || !source.is_enabled) { db.prepare("UPDATE sync_jobs SET status='cancelled',last_error='Source is disabled or deleted',finished_at=CURRENT_TIMESTAMP WHERE id=?").run(job.id); return; }
+  try {
+    if (job.kind === "pull") await pull(source); else if (job.kind === "push") await push(source, JSON.parse(job.payload_json || "{}"));
+    db.prepare("UPDATE sync_jobs SET status='done',finished_at=CURRENT_TIMESTAMP WHERE id=?").run(job.id);
+    db.prepare("UPDATE sources SET sync_status='synced',last_error=NULL,last_synced_at=CURRENT_TIMESTAMP WHERE id=?").run(source.id);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Sync failure"; const exhausted = job.attempts + 1 >= 5;
+    db.prepare("UPDATE sync_jobs SET status=?,last_error=?,finished_at=CASE WHEN ? THEN CURRENT_TIMESTAMP ELSE NULL END,run_after=CASE WHEN ? THEN run_after ELSE datetime('now','+5 minutes') END WHERE id=?").run(exhausted ? "failed" : "queued", message, exhausted ? 1 : 0, exhausted ? 1 : 0, job.id);
+    db.prepare("UPDATE sources SET sync_status='error',last_error=? WHERE id=?").run(message, source.id);
+  }
+}
+
+function schedule() {
+  const interval = Number(process.env.SYNC_INTERVAL_MINUTES || 60);
+  db.prepare(`INSERT INTO sync_jobs(source_id,kind,trigger) SELECT id,'pull','scheduled' FROM sources WHERE is_enabled=1 AND COALESCE(last_synced_at,'1970-01-01') < datetime('now', ?) AND NOT EXISTS (SELECT 1 FROM sync_jobs j WHERE j.source_id=sources.id AND j.kind='pull' AND j.status IN ('queued','running'))`).run(`-${interval} minutes`);
+}
+
+setInterval(() => { schedule(); void run(); }, 5000); schedule(); void run();