feat(knowledge): 阅读改成独立整页，抽屉只用来编辑

知识原来一律在抽屉里打开，正文贴着屏幕右半边，长文读十几屏眼睛一直在右边。
阅读是「坐下来读一会儿」，编辑是「改两句就走」，两件事不该共用一个容器。

- 新增阅读页 /w/:wsId/knowledge/:itemId：正文列限到 40rem 居中，28px 标题，
  更新/发布/切片行，标签与来源，动作行放编辑与发布/归档/恢复
- 列表页与搜索结果改成跳阅读页，不再弹抽屉
- KnowledgeDrawer 加 initialEditing：进来就是编辑器，保存或取消直接关
- 文案常量搬到 lib/knowledge.ts，列表页与阅读页共用一份

顺带修三个 e2e 脚本：新建后进阅读页没有「关闭」按钮可点、侧栏色点按钮让树
顺序断言多出空串、翻页脚本还在用已关闭的短信登录（改密码登录）。

web/src/pages/Knowledge.tsx

@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
-import { useParams } from "react-router-dom";
+import { useNavigate, useParams } from "react-router-dom";
 import { AppShell } from "../components/AppShell";
 import { AttachmentPanel } from "../components/AttachmentPanel";
 import { Markdown } from "../components/Markdown";
@@ -15,11 +15,19 @@ import {
   StatusPill,
 } from "../components/ui";
 import { ApiError, api } from "../lib/client";
+import {
+  ACTION_LABEL,
+  CATEGORY_PALETTE,
+  DOC_TYPE_LABEL,
+  HEX_COLOR_RE,
+  SOURCE_LABEL,
+  STATUS_LABEL,
+  categoryColor,
+} from "../lib/knowledge";
 import type {
   Attachment,
   Knowledge,
   KnowledgeCategoryNode,
-  KnowledgeStatus,
   SearchHit,
 } from "../lib/types";
 
@@ -31,68 +39,6 @@ const TABS = [
   { key: "archived", label: "已归档", statuses: ["archived"] },
 ] as const;
 
-const DOC_TYPE_LABEL: Record<string, string> = {
-  note: "笔记",
-  howto: "怎么做",
-  faq: "常见问题",
-  postmortem: "复盘",
-  decision: "决策",
-};
-
-const STATUS_LABEL: Record<KnowledgeStatus, string> = {
-  draft: "草稿",
-  in_review: "待审议",
-  published: "已发布",
-  archived: "已归档",
-};
-
-const SOURCE_LABEL: Record<string, string> = {
-  manual: "手记",
-  task: "来自任务",
-  ticket: "来自工单",
-};
-
-/**
- * 分类调色板。给的是“彼此能分开”的一组色，不是渐变——分类色的用途是让人
- * 在卡片墙上一眼分辨归属，颜色之间越差得开越好用。调色板没有的色可以手填。
- */
-const CATEGORY_PALETTE = [
-  "#4F46E5",
-  "#0EA5E9",
-  "#10B981",
-  "#F59E0B",
-  "#EF4444",
-  "#EC4899",
-  "#8B5CF6",
-  "#14B8A6",
-  "#64748B",
-  "#84CC16",
-];
-
-const HEX_COLOR_RE = /^#[0-9A-Fa-f]{6}$/;
-
-/**
- * 分类实际用的颜色：设了就用设的，没设就按 id 稳定地挑一个调色板色。
- *
- * 为什么没设也要给色：老分类（加颜色列之前建的）全是空值，如果空值一律画灰边，
- * 刚上的“分类色”看起来就像没生效。按 id 取模是确定性的：同一条分类刷新前后同色，
- * 也不会因为新增一条分类而让别的分类换色。
- */
-function categoryColor(cat: { id: string; color: string | null }): string {
-  if (cat.color) return cat.color;
-  let hash = 0;
-  for (let i = 0; i < cat.id.length; i += 1) hash = (hash * 31 + cat.id.charCodeAt(i)) % 9973;
-  return CATEGORY_PALETTE[hash % CATEGORY_PALETTE.length];
-}
-
-const ACTION_LABEL: Record<string, string> = {
-  submit_review: "提交审议",
-  withdraw: "撤回审议",
-  publish: "发布",
-  archive: "归档",
-  restore: "恢复成草稿",
-};
-
 /**
  * 正文编辑区的高度跟着窗口走。
  * 知识是长文，编辑器默认 240px 只露出几行，写一段就得滚一次；
@@ -115,13 +61,15 @@ function useEditorHeight(reserve: number, floor = 360, ceiling = 960) {
 
 export function KnowledgePage() {
   const { wsId = "" } = useParams();
+  // 阅读走独立页面：抽屉只用来编辑（短时间、单次动作），长文阅读要整屏宽度
+  const navigate = useNavigate();
+  const openDoc = (id: string) => navigate(`/w/${wsId}/knowledge/${id}`);
   const [tab, setTab] = useState<(typeof TABS)[number]["key"]>("all");
   const [q, setQ] = useState("");
   const [docs, setDocs] = useState<Knowledge[]>([]);
   const [cursor, setCursor] = useState<string | null>(null);
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
-  const [openId, setOpenId] = useState<string | null>(null);
   const [composing, setComposing] = useState(false);
   const [hits, setHits] = useState<SearchHit[] | null>(null);
   const [searching, setSearching] = useState(false);
@@ -291,7 +239,7 @@ export function KnowledgePage() {
     setComposing(false);
     setTab("draft");
     setCatFilter(null);
-    setOpenId(doc.id);
+    openDoc(doc.id);
     void load(null);
     void loadCategories();
   }
@@ -444,7 +392,7 @@ export function KnowledgePage() {
                   {hit.content}
                 </p>
                 <div className="mt-2 text-right">
-                  <Button variant="ghost" size="sm" onClick={() => setOpenId(hit.item_id)}>
+                  <Button variant="ghost" size="sm" onClick={() => openDoc(hit.item_id)}>
                     打开原文
                   </Button>
                 </div>
@@ -488,7 +436,7 @@ export function KnowledgePage() {
               }
               className="card group flex items-start justify-between gap-3 p-4 transition hover:border-line-300 hover:shadow-pop"
             >
-              <button className="min-w-0 flex-1 text-left" onClick={() => setOpenId(d.id)}>
+              <button className="min-w-0 flex-1 text-left" onClick={() => openDoc(d.id)}>
                 <div className="flex items-center gap-1.5">
                   <span className="chip bg-primary-50 text-primary-700">
                     {DOC_TYPE_LABEL[d.knowledge.doc_type] ?? d.knowledge.doc_type}
@@ -538,7 +486,7 @@ export function KnowledgePage() {
                   </div>
                 ) : null}
               </button>
-              <Button variant="ghost" size="sm" className="shrink-0" onClick={() => setOpenId(d.id)}>
+              <Button variant="ghost" size="sm" className="shrink-0" onClick={() => openDoc(d.id)}>
                 打开
               </Button>
             </li>
@@ -567,18 +515,6 @@ export function KnowledgePage() {
         />
       )}
 
-      {openId && (
-        <KnowledgeDrawer
-          wsId={wsId}
-          itemId={openId}
-          categories={categories}
-          onClose={() => setOpenId(null)}
-          onChanged={() => {
-            void load(null);
-            void loadCategories();
-          }}
-        />
-      )}
     </AppShell>
   );
 }
@@ -1264,16 +1200,24 @@ function KnowledgeComposer({
 }
 
 /** 知识详情抽屉：能改、能提交审议、能发布/归档。 */
-function KnowledgeDrawer({
+/**
+ * 编辑抽屉。阅读不走这里——阅读有独立页面（pages/KnowledgeDoc.tsx）。
+ *
+ * `initialEditing` 为真时它就是"纯编辑器"：进来直接是编辑态，保存或取消都关掉，
+ * 不在这里再看一遍正文（阅读页就在它背后，没必要叠一层相同的排版）。
+ */
+export function KnowledgeDrawer({
   wsId,
   itemId,
   categories,
+  initialEditing = false,
   onClose,
   onChanged,
 }: {
   wsId: string;
   itemId: string;
   categories: KnowledgeCategoryNode[];
+  initialEditing?: boolean;
   onClose: () => void;
   onChanged: () => void;
 }) {
@@ -1296,7 +1240,7 @@ function KnowledgeDrawer({
   }, [attachments]);
   const [busy, setBusy] = useState(false);
   /** 打开是「读」还是「写」：读的时候渲染样式，只有点「编辑」才进编辑器。 */
-  const [editing, setEditing] = useState(false);
+  const [editing, setEditing] = useState(initialEditing);
   /** 已经载入完成的是哪一条知识。重复的 effect / 慢响应不该再覆盖用户正在敲的内容。 */
   const loadedFor = useRef<string | null>(null);
 
@@ -1311,13 +1255,13 @@ function KnowledgeDrawer({
         setTags(data.tags.map((t) => t.name).join(" "));
         setCategoryId(data.category?.id ?? "");
         setAttachments(data.attachments ?? []);
-        setEditing(false);
+        setEditing(initialEditing);
         loadedFor.current = itemId;
       } catch (err) {
         setError(err instanceof ApiError ? err.message : "加载失败");
       }
     },
-    [wsId, itemId],
+    [wsId, itemId, initialEditing],
   );
 
   useEffect(() => {
@@ -1337,8 +1281,12 @@ function KnowledgeDrawer({
         version: doc.version,
       });
       setDoc(next);
-      setEditing(false);
       onChanged();
+      if (initialEditing) {
+        onClose();
+      } else {
+        setEditing(false);
+      }
     } catch (err) {
       if (err instanceof ApiError && err.code === 4009) {
         setError("刚被别人改过，已刷新为最新内容");
@@ -1410,6 +1358,10 @@ function KnowledgeDrawer({
                   variant="ghost"
                   disabled={busy}
                   onClick={() => {
+                    if (initialEditing) {
+                      onClose();
+                      return;
+                    }
                     setEditing(false);
                     void load(true);
                   }}

web/src/pages/KnowledgeDoc.tsx

@@ -0,0 +1,271 @@
+/**
+ * 知识阅读页（`/w/:wsId/knowledge/:itemId`）。
+ *
+ * 为什么阅读要独立成页而不是抽屉：抽屉贴在右边、最大也就 1150px 的六成宽，
+ * 长文在这个位置读十几屏，视线一直偏在屏幕右侧，很累。阅读本来就该是
+ * 一整页、正文落在视线中间的一列（这里限宽 40rem，约 40 个汉字一行）。
+ * 抽屉留给"改一下"——那是短时间的动作，也不常对同一篇反复做。
+ */
+import { useCallback, useEffect, useMemo, useState } from "react";
+import { Link, useNavigate, useParams } from "react-router-dom";
+import { AppShell } from "../components/AppShell";
+import { AttachmentPanel } from "../components/AttachmentPanel";
+import { Markdown } from "../components/Markdown";
+import { ChevronLeft, Link2, Pencil } from "../components/icons";
+import { Button, InlineAlert, SkeletonRows, StatusPill } from "../components/ui";
+import { ApiError, api } from "../lib/client";
+import { ACTION_LABEL, DOC_TYPE_LABEL, STATUS_LABEL, categoryColor } from "../lib/knowledge";
+import type { Attachment, Knowledge, KnowledgeCategoryNode } from "../lib/types";
+import { KnowledgeDrawer } from "./Knowledge";
+
+export function KnowledgeDocPage() {
+  const { wsId = "", itemId = "" } = useParams();
+  const navigate = useNavigate();
+  const [doc, setDoc] = useState<Knowledge | null>(null);
+  const [categories, setCategories] = useState<KnowledgeCategoryNode[]>([]);
+  const [error, setError] = useState<string | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [editing, setEditing] = useState(false);
+  const [busy, setBusy] = useState(false);
+
+  const load = useCallback(async () => {
+    setLoading(true);
+    setError(null);
+    try {
+      const data = await api.get<Knowledge>(`/workspaces/${wsId}/knowledge/${itemId}`);
+      setDoc(data);
+    } catch (err) {
+      setError(err instanceof ApiError ? err.message : "知识加载失败");
+    } finally {
+      setLoading(false);
+    }
+  }, [wsId, itemId]);
+
+  useEffect(() => {
+    void load();
+  }, [load]);
+
+  // 换一篇就回到顶部：否则从长文点进短文，会停在上一页的滚动位置
+  useEffect(() => {
+    window.scrollTo({ top: 0 });
+  }, [itemId]);
+
+  useEffect(() => {
+    void (async () => {
+      try {
+        const page = await api.get<{ items: KnowledgeCategoryNode[] }>(
+          `/workspaces/${wsId}/knowledge/categories`,
+        );
+        setCategories(page.items);
+      } catch {
+        // 分类只是编辑时的下拉选项，取不到不影响阅读
+      }
+    })();
+  }, [wsId]);
+
+  /** 附件直链：正文里的图片按 attachment id 换成带签名的 raw_url */
+  const resources = useMemo(() => {
+    const map: Record<string, string> = {};
+    for (const row of (doc?.attachments ?? []) as Attachment[]) {
+      if (row.raw_url) map[row.id] = row.raw_url;
+    }
+    return map;
+  }, [doc]);
+
+  async function act(action: string) {
+    if (!doc) return;
+    setBusy(true);
+    setError(null);
+    try {
+      const next = await api.post<Knowledge>(`/workspaces/${wsId}/knowledge/${itemId}/status`, {
+        action,
+        version: doc.version,
+      });
+      setDoc(next);
+    } catch (err) {
+      setError(err instanceof ApiError ? err.message : "操作失败");
+      await load();
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  const status = doc?.knowledge.status_hint;
+  const canEdit = status === "draft" || status === "in_review" || status === "published";
+  const actions: { key: string; label: string; show: boolean }[] = [
+    { key: "submit_review", label: ACTION_LABEL.submit_review, show: status === "draft" },
+    { key: "withdraw", label: ACTION_LABEL.withdraw, show: status === "in_review" },
+    { key: "publish", label: ACTION_LABEL.publish, show: status === "draft" || status === "in_review" },
+    {
+      key: "archive",
+      label: ACTION_LABEL.archive,
+      show: status === "draft" || status === "in_review" || status === "published",
+    },
+    { key: "restore", label: ACTION_LABEL.restore, show: status === "archived" },
+  ];
+
+  return (
+    <AppShell wsId={wsId} active="knowledge">
+      <div className="mx-auto w-full max-w-[46rem]">
+        <div className="mb-4 flex flex-wrap items-center gap-2">
+          <Link
+            to={`/w/${wsId}/knowledge`}
+            className="inline-flex items-center gap-1 text-xs text-ink-500 transition hover:text-ink-800"
+          >
+            <ChevronLeft size={13} />
+            返回知识库
+          </Link>
+          <span className="text-2xs text-ink-300">/</span>
+          <span className="max-w-[18rem] truncate text-2xs text-ink-400">
+            {doc?.category?.full_path ?? "未分类"}
+          </span>
+        </div>
+
+        {error && (
+          <div className="mb-4">
+            <InlineAlert>{error}</InlineAlert>
+          </div>
+        )}
+
+        {loading && !doc ? (
+          <div className="card overflow-hidden">
+            <SkeletonRows rows={4} />
+          </div>
+        ) : !doc ? (
+          <div className="card p-6 text-center">
+            <p className="text-sm text-ink-600">这条知识不在了，或者你没有权限看它。</p>
+            <div className="mt-4">
+              <Button variant="ghost" onClick={() => navigate(`/w/${wsId}/knowledge`)}>
+                回到知识库
+              </Button>
+            </div>
+          </div>
+        ) : (
+          <article className="card px-5 py-6 sm:px-8 sm:py-8">
+            <div className="mx-auto w-full max-w-[40rem]">
+              <div className="flex flex-wrap items-center gap-1.5">
+                <span className="chip bg-primary-50 text-primary-700">
+                  {DOC_TYPE_LABEL[doc.knowledge.doc_type] ?? doc.knowledge.doc_type}
+                </span>
+                <StatusPill
+                  status={doc.knowledge.status_hint}
+                  label={STATUS_LABEL[doc.knowledge.status_hint]}
+                />
+                {doc.category ? (
+                  <span className="chip max-w-[18rem] truncate bg-paper-200 text-ink-600">
+                    <span
+                      aria-hidden
+                      className="mr-1 inline-block h-1.5 w-1.5 shrink-0 rounded-full align-middle"
+                      style={{ background: categoryColor(doc.category) }}
+                    />
+                    {doc.category.full_path}
+                  </span>
+                ) : null}
+              </div>
+
+              <h1 className="mt-3 text-2xl font-semibold leading-snug text-ink-900 sm:text-[28px]">
+                {doc.title}
+              </h1>
+
+              <p className="mt-2 flex flex-wrap items-center gap-x-3 gap-y-1 text-2xs text-ink-400">
+                <span>更新于 {new Date(doc.updated_at).toLocaleString("zh-CN")}</span>
+                {doc.knowledge.published_at ? (
+                  <span>发布于 {new Date(doc.knowledge.published_at).toLocaleString("zh-CN")}</span>
+                ) : (
+                  <span>尚未发布，只有工作区里的人能看到</span>
+                )}
+                {doc.knowledge.chunk_count > 0 ? (
+                  <span>检索切片 {doc.knowledge.chunk_count} 段</span>
+                ) : null}
+              </p>
+
+              {doc.tags.length > 0 ? (
+                <div className="mt-3 flex flex-wrap gap-1">
+                  {doc.tags.map((t) => (
+                    <span key={t.id} className="chip bg-primary-50 text-primary-700">
+                      #{t.name}
+                    </span>
+                  ))}
+                </div>
+              ) : null}
+
+              <div className="mt-4 flex flex-wrap items-center gap-2 border-b border-line-200 pb-4">
+                {canEdit ? (
+                  <Button variant="primary" onClick={() => setEditing(true)}>
+                    <Pencil size={13} />
+                    编辑
+                  </Button>
+                ) : null}
+                {actions
+                  .filter((a) => a.show)
+                  .map((a) => (
+                    <Button
+                      key={a.key}
+                      variant={a.key === "publish" ? "clay" : "ghost"}
+                      disabled={busy}
+                      onClick={() => void act(a.key)}
+                    >
+                      {a.label}
+                    </Button>
+                  ))}
+              </div>
+
+              <div className="mt-6">
+                <Markdown source={doc.body_md} resources={resources} />
+              </div>
+
+              {doc.source ? (
+                <div className="mt-8 rounded-xl border border-line-200 bg-paper-50 p-3.5 text-xs leading-relaxed text-ink-600">
+                  <div className="flex items-center gap-1.5">
+                    <Link2 size={12} className="text-ink-400" />
+                    <span>
+                      来源：{doc.source.kind === "ticket" ? "工单" : "任务"}「
+                      <Link
+                        to={
+                          doc.source.kind === "ticket"
+                            ? `/w/${wsId}/tickets?open=${doc.source.id}`
+                            : `/w/${wsId}?open=${doc.source.id}`
+                        }
+                        className="link"
+                      >
+                        {doc.source.title}
+                      </Link>
+                      」
+                    </span>
+                  </div>
+                  {doc.knowledge.generated_by === "rule" ? (
+                    <p className="mt-1 text-ink-400">这份草稿由系统整理，请核对后再发布。</p>
+                  ) : null}
+                </div>
+              ) : null}
+
+              {(doc.attachments?.length ?? 0) > 0 ? (
+                <div className="mt-4 rounded-xl border border-line-200 bg-paper-50 px-3 py-2.5">
+                  <AttachmentPanel
+                    wsId={wsId}
+                    itemId={doc.id}
+                    attachments={(doc.attachments ?? []) as Attachment[]}
+                    onChange={() => void load()}
+                    onError={(message) => setError(message)}
+                    disabled
+                  />
+                </div>
+              ) : null}
+            </div>
+          </article>
+        )}
+      </div>
+
+      {editing && doc ? (
+        <KnowledgeDrawer
+          wsId={wsId}
+          itemId={doc.id}
+          categories={categories}
+          initialEditing
+          onClose={() => setEditing(false)}
+          onChanged={() => void load()}
+        />
+      ) : null}
+    </AppShell>
+  );
+}