feat(terminal): Align the terminal with IDEA's tabs, menu and settings

- ⌘T (Ctrl+Shift+T on Windows) opens a terminal tab while the terminal
  has focus; elsewhere the key keeps its IDE action.
- The tab bar's ▾ menu lists installed shells under "New Predefined
  Session" (login shell, shell integration) and links to Settings.
- Settings › Tools › Terminal: pick the shell path from the installed
  shells or browse for one, "Move focus to the Editor with Escape",
  fallback font, column width and a link to the Terminal keymap.

Claude-Session: https://claude.ai/code/session_01B65qLEKnkeYTGdbwhLpjCu

src/platform/keymaps/intellij-macos.ts

@@ -252,6 +252,8 @@ export const intellijMacos: Record<string, string[]> = {
   "db.sqlScript": [],
   "db.goToReferencedTable": [],
   "db.collapseAll": [],
+  // Terminal (keyWhen: terminalFocus); after VCS Update / Go to Test so it wins there.
+  "terminal.new": ["Meta+T"],
   // Last: later bindings win, so ⌘N is Generate in the editor and New in tool windows.
   "code.generate": ["Meta+N"],
 };

src/platform/keymaps/intellij-windows.ts

@@ -249,6 +249,8 @@ export const intellijWindows: Record<string, string[]> = {
   "db.sqlScript": [],
   "db.goToReferencedTable": [],
   "db.collapseAll": [],
+  // Terminal (keyWhen: terminalFocus); after VCS Update / Go to Test so it wins there.
+  "terminal.new": ["Ctrl+Shift+T"],
   // Last: later bindings win, so Alt+Insert is Generate in the editor and New in tool windows.
   "code.generate": ["Alt+Insert"],
 };

src/platform/keymaps/vscode-macos.ts

@@ -144,6 +144,7 @@ export const vscodeMacos: Record<string, string[]> = {
   "toolwindow.git": ["Ctrl+Shift+G"],
   "toolwindow.commit": [],
   "toolwindow.terminal": ["Ctrl+`"],
+  "terminal.new": [],
   "toolwindow.hideAll": ["Meta+B"],
   "toolwindow.maximize": [],
   "toolwindow.jumpToLast": [],

src/platform/locales/text/zh.json

@@ -2324,5 +2324,14 @@
   "Custom": "自定义",
   "On PATH": "PATH 中",
   "Reinstall": "重新安装",
-  "Auto-detect": "自动检测"
+  "Auto-detect": "自动检测",
+  "Move focus to the Editor with Escape": "按 Escape 将焦点移到编辑器",
+  "Otherwise Escape goes to the shell.": "否则 Escape 发送给 shell。",
+  "Configure terminal keybindings": "配置终端快捷键",
+  "Used for characters the main font lacks.": "用于主字体缺少的字符。",
+  "Column width": "列宽",
+  "Installed Shells": "已安装的 Shell",
+  "Installed shells": "已安装的 Shell",
+  "Shell Path": "Shell 路径",
+  "New Predefined Session": "新建预定义会话"
 }

src/platform/workflowSettings.ts

@@ -91,12 +91,15 @@ export interface TerminalSettingsValid {
   shellIntegration: boolean;
   highlightHyperlinks: boolean;
   optionAsMeta: boolean;
+  escapeToEditor: boolean;
   cursorShape: CursorShape;
   cursorBlink: boolean;
   useEditorFont: boolean;
   fontFamily: string;
   fontSize: number;
   lineHeight: number;
+  fallbackFontFamily: string;
+  columnWidth: number;
 }
 
 export interface ActionsOnSaveValid {
@@ -135,6 +138,7 @@ export const WORKFLOW_LIMITS = {
   terminationTimeoutMs: { min: 0, max: 600_000 },
   terminalFontSize: { min: 6, max: 72 },
   terminalLineHeight: { min: 0.5, max: 3 },
+  terminalColumnWidth: { min: 0.5, max: 2 },
 } as const;
 
 export const DEFAULT_EXTERNAL_TOOL: ExternalToolValid = {
@@ -221,12 +225,15 @@ export const DEFAULT_WORKFLOW: WorkflowSettings = {
     shellIntegration: true,
     highlightHyperlinks: true,
     optionAsMeta: false,
+    escapeToEditor: false,
     cursorShape: "block",
     cursorBlink: true,
     useEditorFont: true,
     fontFamily: "JetBrains Mono",
     fontSize: 13,
     lineHeight: 1,
+    fallbackFontFamily: "",
+    columnWidth: 1,
   },
   actionsOnSave: { optimizeImports: false, cleanup: false },
   externalTools: [],
@@ -357,12 +364,15 @@ export function validateTerminal(raw: unknown): TerminalSettingsValid {
     shellIntegration: bool(v.shellIntegration, d.shellIntegration),
     highlightHyperlinks: bool(v.highlightHyperlinks, d.highlightHyperlinks),
     optionAsMeta: bool(v.optionAsMeta, d.optionAsMeta),
+    escapeToEditor: bool(v.escapeToEditor, d.escapeToEditor),
     cursorShape: oneOf(v.cursorShape, ["block", "underline", "bar"] as const, d.cursorShape),
     cursorBlink: bool(v.cursorBlink, d.cursorBlink),
     useEditorFont: bool(v.useEditorFont, d.useEditorFont),
     fontFamily: nonEmpty(v.fontFamily, d.fontFamily),
     fontSize: num(v.fontSize, d.fontSize, WORKFLOW_LIMITS.terminalFontSize),
     lineHeight: num(v.lineHeight, d.lineHeight, WORKFLOW_LIMITS.terminalLineHeight),
+    fallbackFontFamily: text(v.fallbackFontFamily, d.fallbackFontFamily).trim(),
+    columnWidth: num(v.columnWidth, d.columnWidth, WORKFLOW_LIMITS.terminalColumnWidth),
   };
 }