feat(browser): reuse system Chrome/Edge, bundle playwright for desktop

desktop/build/cowagent-backend.spec

@@ -105,6 +105,14 @@ hiddenimports += collect_submodules('docx')
 hiddenimports += collect_submodules('pptx')
 hiddenimports += collect_submodules('openpyxl')
 
+# Playwright powers the browser tool. Only the pure-Python package + its bundled
+# Node driver are shipped (~10-15MB); the ~150MB Chromium binary is NOT bundled
+# and is either satisfied by the user's system Chrome/Edge (preferred, zero
+# download) or downloaded on demand into ~/.cow/ms-playwright at first use.
+# Playwright imports its transport/driver lazily, so list submodules explicitly.
+hiddenimports += ['playwright', 'playwright.sync_api', 'playwright._impl']
+hiddenimports += collect_submodules('playwright')
+
 # --- Data files -----------------------------------------------------------
 # Runtime-read files/dirs that must travel with the executable. Paths are
 # (source, dest_dir_in_bundle).
@@ -134,6 +142,12 @@ datas += collect_data_files('tiktoken_ext', include_py_files=False)
 datas += collect_data_files('docx')
 datas += collect_data_files('pptx')
 
+# Playwright ships its Node.js driver + package.json under playwright/driver/.
+# These are NOT Python modules, so hiddenimports won't pull them in — collect
+# them as data or `playwright install` / launching fails in the frozen build.
+# include_py_files=True is required: the driver dir contains .py entrypoints.
+datas += collect_data_files('playwright', include_py_files=True)
+
 # --- Excludes -------------------------------------------------------------
 # Keep the bundle lean: drop Feishu's heavy SDK, plugins (disabled in desktop
 # mode), tests/docs, and dev-only packages.
@@ -143,7 +157,10 @@ excludes = [
     'pip',
     'wheel',
     'pytest',
-    'playwright',         # browser tool is opt-in, not bundled
+    # NOTE: playwright is now BUNDLED (pure-Python package + Node driver, ~10-15MB)
+    # so the browser tool works out of the box on desktop. The heavy Chromium
+    # binary is still NOT bundled: it comes from the user's system Chrome/Edge or
+    # is downloaded on demand into ~/.cow/ms-playwright. See browser_env.py.
 ]
 
 block_cipher = None

desktop/build/requirements-desktop.txt

@@ -42,6 +42,12 @@ python-docx
 openpyxl
 python-pptx
 
+# ---- browser tool ----
+# Only the pure-Python package + Node driver are bundled by PyInstaller (~10-15MB).
+# The Chromium binary is NOT bundled: the browser tool drives the user's system
+# Chrome/Edge, or downloads Chromium on demand into ~/.cow at first use.
+playwright==1.52.0
+
 # ---- IM channels (kept; lightweight). Feishu/lark-oapi intentionally excluded. ----
 wechatpy
 pycryptodome

desktop/src/renderer/src/components/ChatInput.tsx

@@ -53,6 +53,7 @@ const ChatInput = forwardRef<ChatInputHandle, ChatInputProps>(function ChatInput
     { cmd: '/memory dream ', desc: t('slash_memory_dream') },
     { cmd: '/knowledge', desc: t('slash_knowledge') },
     { cmd: '/knowledge list', desc: t('slash_knowledge_list') },
+    { cmd: '/install-browser', desc: t('slash_install_browser') },
     { cmd: '/config', desc: t('slash_config') },
     { cmd: '/cancel', desc: t('slash_cancel') },
     { cmd: '/logs', desc: t('slash_logs') },

desktop/src/renderer/src/components/Markdown.tsx

@@ -30,6 +30,34 @@ const md: MarkdownIt = new MarkdownIt({
   },
 })
 
+// Fix greedy linkify: markdown-it's linkify swallows markdown emphasis (`*`)
+// and CJK full-width punctuation glued to a URL (common in LLM output like
+// `**https://x**，中文`), turning the whole tail into one broken link. Cut the
+// URL at the first such char and spill the remainder back as plain text.
+const _GREEDY_LINK_CUT = /[*\u3000-\u303F\uFF00-\uFFEF]/
+md.core.ruler.after('linkify', 'fix_greedy_linkify', (state) => {
+  for (const blk of state.tokens) {
+    if (blk.type !== 'inline' || !blk.children) continue
+    const ch = blk.children
+    for (let i = 0; i < ch.length; i++) {
+      const open = ch[i]
+      if (open.type !== 'link_open' || open.markup !== 'linkify') continue
+      const textTok = ch[i + 1]
+      const close = ch[i + 2]
+      if (!textTok || textTok.type !== 'text' || !close || close.type !== 'link_close') continue
+      const idx = textTok.content.search(_GREEDY_LINK_CUT)
+      if (idx < 0) continue
+      const keep = textTok.content.slice(0, idx)
+      const spill = textTok.content.slice(idx)
+      textTok.content = keep
+      open.attrSet('href', keep)
+      const spillTok = new state.Token('text', '', 0)
+      spillTok.content = spill
+      ch.splice(i + 3, 0, spillTok)
+    }
+  }
+})
+
 // Open links in a new tab safely.
 const defaultLinkOpen =
   md.renderer.rules.link_open ||

desktop/src/renderer/src/i18n.ts

@@ -376,6 +376,7 @@ const translations: Record<string, Record<string, string>> = {
     slash_memory_dream: '手动触发记忆蒸馏 (可指定天数, 默认3)',
     slash_knowledge: '查看知识库统计',
     slash_knowledge_list: '查看知识库文件树',
+    slash_install_browser: '安装浏览器工具',
     slash_config: '查看当前配置',
     slash_cancel: '中止当前正在运行的 Agent 任务',
     slash_logs: '查看最近日志',
@@ -758,6 +759,7 @@ const translations: Record<string, Record<string, string>> = {
     slash_memory_dream: 'Trigger memory distillation (optional days, default 3)',
     slash_knowledge: 'Show knowledge base stats',
     slash_knowledge_list: 'Show knowledge base file tree',
+    slash_install_browser: 'Install browser tool',
     slash_config: 'Show current config',
     slash_cancel: 'Abort the running agent task',
     slash_logs: 'Show recent logs',