feat: clickable URLs, left-rail settings nav, proportional resizable dialog

URLs in terminal output (http/https/ftp with ports, www. hosts, bare
localhost:port dev-server forms) are detected via a link provider: hover
underlines and shows the pointer, Ctrl/Cmd+Click opens the system browser.
Wrapped URLs spanning buffer rows resolve as one link. The 网址链接 highlight
preset grows to cover ftp:// and www. forms.

The settings dialog moves to a left navigation rail with the content column
scrolling on its own, sizes itself at ~70% of the main window and follows
main-window resizes in real time (until the user drags the corner grip),
stays centred while resizing, and keeps a stable height.

src/renderer/src/settings/SettingsDialog.tsx

@@ -1,4 +1,4 @@
-import { useMemo, useState } from 'react'
+import { useEffect, useMemo, useState } from 'react'
 import { Button, Modal, Tabs } from 'antd'
 import type { TabsProps } from 'antd'
 import { DEFAULT_SETTINGS } from '@shared/settings'
@@ -20,6 +20,53 @@ export function SettingsDialog({ open, onClose }: SettingsDialogProps): React.JS
   const [editorState, setEditorState] = useState<{ open: boolean; themeId?: string }>({
     open: false
   })
+  // Dialog size: proportional to the main window by default, user-draggable
+  // afterwards. `null` means "use the proportional default". While the dialog
+  // is open, a main-window resize re-derives that default in real time.
+  const [size, setSize] = useState<{ w: number; h: number } | null>(null)
+  const [winSize, setWinSize] = useState({ w: window.innerWidth, h: window.innerHeight })
+  useEffect(() => {
+    if (open) setSize(null)
+  }, [open])
+  useEffect(() => {
+    if (!open) return
+    const onResize = (): void => setWinSize({ w: window.innerWidth, h: window.innerHeight })
+    window.addEventListener('resize', onResize)
+    return () => window.removeEventListener('resize', onResize)
+  }, [open])
+
+  const clampToWindow = (w: number, h: number): { w: number; h: number } => ({
+    w: Math.max(720, Math.min(w, winSize.w - 96)),
+    h: Math.max(440, Math.min(h, winSize.h - 140))
+  })
+  const dialogSize = size
+    ? clampToWindow(size.w, size.h)
+    : clampToWindow(Math.round(winSize.w * 0.7), Math.round(winSize.h * 0.7))
+  // The modal chrome (header + footer + paddings) is ~132px; the body takes the rest.
+  const bodyHeight = Math.max(360, dialogSize.h - 132)
+
+  const startResize = (e: React.MouseEvent<HTMLSpanElement>): void => {
+    e.preventDefault()
+    e.stopPropagation()
+    const startX = e.clientX
+    const startY = e.clientY
+    const base = dialogSize
+    const onMove = (ev: MouseEvent): void => {
+      const w = Math.max(720, Math.min(window.innerWidth - 96, base.w + (ev.clientX - startX)))
+      const h = Math.max(440, Math.min(window.innerHeight - 140, base.h + (ev.clientY - startY)))
+      setSize({ w, h })
+    }
+    const onUp = (): void => {
+      window.removeEventListener('mousemove', onMove)
+      window.removeEventListener('mouseup', onUp)
+      document.body.style.cursor = ''
+      document.body.style.userSelect = ''
+    }
+    document.body.style.cursor = 'nwse-resize'
+    document.body.style.userSelect = 'none'
+    window.addEventListener('mousemove', onMove)
+    window.addEventListener('mouseup', onUp)
+  }
 
   const tabItems: TabsProps['items'] = [
     { key: 'font', label: '字体', children: <FontSettingsTab /> },
@@ -50,7 +97,8 @@ export function SettingsDialog({ open, onClose }: SettingsDialogProps): React.JS
     <Modal
       open={open}
       onCancel={onClose}
-      width={760}
+      centered
+      width={dialogSize.w}
       title="设置"
       footer={
         <div className="settings-footer">
@@ -61,7 +109,16 @@ export function SettingsDialog({ open, onClose }: SettingsDialogProps): React.JS
         </div>
       }
     >
-      <Tabs defaultActiveKey="font" items={tabItems} />
+      <div className="settings-body" style={{ height: bodyHeight }}>
+        <Tabs tabPosition="left" defaultActiveKey="font" items={tabItems} />
+      </div>
+      {/* Drag corner: resizes the dialog until it is closed. */}
+      <span
+        className="settings-resize"
+        title="拖拽调整大小"
+        aria-label="拖拽调整大小"
+        onMouseDown={startResize}
+      />
       <ThemeEditor
         open={editorState.open}
         onClose={closeEditor}

src/renderer/src/settings/settings.css

@@ -14,6 +14,75 @@
   border-bottom: 1px solid var(--chrome-border);
 }
 
+/* ---------- left-rail navigation (tabPosition="left") ----------
+   The tab list doubles as the dialog's sidebar: fixed narrow column, roomy
+   click targets, active item tinted with the tab accent. The content column
+   scrolls on its own so long panes (字体/高亮) never grow the dialog. */
+.settings-body .ant-tabs-left > .ant-tabs-nav {
+  margin: 0;
+  border-bottom: none;
+  border-right: 1px solid var(--chrome-border);
+  padding-right: 6px;
+  min-width: 148px;
+}
+
+.settings-body .ant-tabs-left > .ant-tabs-nav .ant-tabs-tab {
+  margin: 2px 0;
+  padding: 8px 14px;
+  border-radius: 6px;
+  justify-content: flex-start;
+}
+
+.settings-body .ant-tabs-left > .ant-tabs-nav .ant-tabs-tab:hover {
+  background: var(--chrome-hover);
+}
+
+.settings-body .ant-tabs-left > .ant-tabs-nav .ant-tabs-tab-active {
+  background: color-mix(in srgb, var(--tab-accent, #3fb950) 16%, transparent);
+}
+
+.settings-body .ant-tabs-left > .ant-tabs-nav .ant-tabs-ink-bar {
+  background: var(--tab-accent, #3fb950);
+}
+
+.settings-body {
+  display: flex;
+  overflow: hidden;
+}
+
+.settings-body > .ant-tabs {
+  flex: 1;
+  min-height: 0;
+}
+
+.settings-body .ant-tabs-content-holder {
+  flex: 1;
+  overflow-y: auto;
+}
+
+/* Corner grip for resizing the dialog (wired in SettingsDialog). */
+.ant-modal .ant-modal-body {
+  position: relative;
+}
+
+.settings-resize {
+  position: absolute;
+  right: 3px;
+  bottom: 3px;
+  width: 16px;
+  height: 16px;
+  cursor: nwse-resize;
+  border-radius: 3px;
+  background:
+    linear-gradient(135deg, transparent 52%, var(--chrome-border) 52%, var(--chrome-border) 58%, transparent 58%),
+    linear-gradient(135deg, transparent 64%, var(--chrome-border) 64%, var(--chrome-border) 70%, transparent 70%),
+    linear-gradient(135deg, transparent 76%, var(--chrome-border) 76%, var(--chrome-border) 82%, transparent 82%);
+}
+
+.settings-resize:hover {
+  filter: brightness(1.6);
+}
+
 .settings-footer {
   display: flex;
   align-items: center;

src/renderer/src/terminal/TerminalView.tsx

@@ -1,7 +1,7 @@
 import { forwardRef, useCallback, useEffect, useImperativeHandle, useLayoutEffect, useMemo, useRef, useState } from 'react'
 import type { ForwardRefExoticComponent, Ref } from 'react'
 import { Terminal } from '@xterm/xterm'
-import type { ITheme } from '@xterm/xterm'
+import type { ILink, ITheme } from '@xterm/xterm'
 import { FitAddon } from '@xterm/addon-fit'
 import { WebglAddon } from '@xterm/addon-webgl'
 import { SearchAddon } from '@xterm/addon-search'
@@ -14,6 +14,7 @@ import type { TerminalSettings } from '@shared/settings'
 import { useSettingsStore } from '@renderer/settings/store'
 import { writeBroadcast } from '@renderer/workspace/broadcastStore'
 import { compileRules, HighlightStream, type CompiledRule } from './highlightEngine'
+import { findUrls } from './urlLinks'
 import { subscribePtyData, subscribePtyExit } from './ptyDispatcher'
 import { cdArgument, conemuCwd } from './cwdTracker'
 import { getSessionCwd, setSessionCwd } from '@renderer/workspace/sessionCwdStore'
@@ -767,8 +768,55 @@ export const TerminalView: ForwardRefExoticComponent<TerminalViewProps & { ref?:
       if (out) term.write(out)
       scheduleCarryFlush()
     }
+    // Clickable URLs. Ctrl/Cmd+Click opens the target in the system browser;
+    // the pointer cursor + underline advertise it on hover. A plain click stays
+    // with the terminal (cursor placement / selection), so a link can never
+    // open by accident while selecting text.
+    const linkProvider = term.registerLinkProvider({
+      provideLinks: (bufferLineNumber, callback) => {
+        const buffer = term.buffer.active
+        // provideLinks speaks 1-based line numbers, IBuffer.getLine 0-based.
+        let first = bufferLineNumber - 1
+        if (first < 0) {
+          callback(undefined)
+          return
+        }
+        while (first > 0 && buffer.getLine(first)?.isWrapped) first--
+        const rows: { index: number; text: string }[] = []
+        for (let row = first; row < buffer.length; row++) {
+          const line = buffer.getLine(row)
+          if (!line || (row > first && !line.isWrapped)) break
+          rows.push({ index: row, text: line.translateToString(false) })
+        }
+        const text = rows.map((r) => r.text).join('')
+        const cols = term.cols > 0 ? term.cols : 1
+        const base = rows[0]?.index ?? first
+        const links: ILink[] = findUrls(text).map((found) => {
+          const startRow = Math.floor(found.start / cols)
+          const endRow = Math.floor((found.end - 1) / cols)
+          return {
+            range: {
+              start: { x: (found.start % cols) + 1, y: base + startRow + 1 },
+              end: { x: ((found.end - 1) % cols) + 1, y: base + endRow + 1 }
+            },
+            text: found.url,
+            decorations: { pointerCursor: true, underline: true },
+            activate: (event: MouseEvent): void => {
+              const mod = navigator.platform.toLowerCase().includes('mac')
+                ? event.metaKey
+                : event.ctrlKey
+              if (!mod) return
+              // The main process routes window.open through shell.openExternal.
+              window.open(found.url, '_blank', 'noopener')
+            }
+          }
+        })
+        callback(links.length > 0 ? links : undefined)
+      }
+    })
     const disposables: { dispose(): void }[] = [
       ...oscDisposables,
+      linkProvider,
       term.onData((data) => {
         if (!deadRef.current) writeBroadcast(sessionId, data)
         // M5: a completion acceptance rewrite armed `diffRewriteRef`; consume it

src/renderer/src/terminal/urlLinks.ts

@@ -0,0 +1,67 @@
+/**
+ * Clickable URLs in terminal output.
+ *
+ * xterm has no link detection of its own for plain text (OSC 8 hyperlinks are
+ * a separate, opt-in protocol the CLI must emit), so a link provider scans the
+ * buffer line and hands back ranges. Two shapes are recognised:
+ *   1. fully qualified `http(s)://host[:port][/path][?query]`;
+ *   2. the scheme-less dev-server forms `localhost:5000`, `127.0.0.1:8080`,
+ *      `0.0.0.0:3000` — opened as http.
+ *
+ * Because PTY output wraps long URLs across buffer rows, the provider rebuilds
+ * the whole *logical* line (walking back through `isWrapped` rows and forward
+ * to the last wrapped one) before matching, so a link split by the terminal
+ * width still resolves as one range.
+ */
+
+/** Characters that end a URL: whitespace, quotes, brackets, CJK punctuation. */
+const URL_BODY = `[^\\s"'\`<>()\\[\\]{}，。；：、]+`
+
+const SCHEME_URL = new RegExp(`\\bhttps?://${URL_BODY}`, 'gi')
+const FTP_URL = new RegExp(`\\bftp://${URL_BODY}`, 'gi')
+const WWW_HOST = new RegExp(`\\bwww\\.[A-Za-z0-9-]+\\.[A-Za-z]{2,}(?::\\d{1,5})?(?:/${URL_BODY})?`, 'gi')
+const BARE_HOST = new RegExp(`\\b(?:localhost|127\\.0\\.0\\.1|0\\.0\\.0\\.0)(?::\\d{1,5})(?:/${URL_BODY})?`, 'gi')
+
+/** Trailing punctuation that belongs to the sentence, not the URL. */
+const TRAILING = /[.,;:!?)\]}>"'，。；：、]+$/
+
+export interface FoundLink {
+  /** absolute offset of the first character, within the logical line */
+  start: number
+  /** absolute offset one past the last character */
+  end: number
+  /** the clickable target, scheme guaranteed */
+  url: string
+}
+
+/** Match every URL in one logical line of text. */
+export function findUrls(text: string): FoundLink[] {
+  const out: FoundLink[] = []
+  const scan = (re: RegExp, withScheme: boolean): void => {
+    re.lastIndex = 0
+    let m: RegExpExecArray | null
+    while ((m = re.exec(text)) !== null) {
+      const trimmed = m[0].replace(TRAILING, '')
+      if (!trimmed) continue
+      out.push({
+        start: m.index,
+        end: m.index + trimmed.length,
+        url: withScheme ? trimmed : `http://${trimmed}`
+      })
+    }
+  }
+  scan(SCHEME_URL, true)
+  scan(FTP_URL, true)
+  // `www.…` (and the bare host forms) get an http:// target when opened.
+  scan(WWW_HOST, false)
+  scan(BARE_HOST, false)
+  // A bare host inside a scheme URL (`http://localhost:5000`) matches both
+  // patterns; keep the longer, scheme-carrying one.
+  out.sort((a, b) => a.start - b.start || b.end - a.end)
+  const kept: FoundLink[] = []
+  for (const link of out) {
+    if (kept.some((k) => link.start < k.end && link.end > k.start)) continue
+    kept.push(link)
+  }
+  return kept
+}