refactor: 架构变更：Webview → VSCode 内置 Diff + 浮动标签

package.json

@@ -1,8 +1,8 @@
 {
   "name": "ai-diff-preview",
   "displayName": "AI Code Diff Preview",
-  "description": "类 Cursor 的 AI 代码差异预览插件，支持 Accept/Reject 操作",
-  "version": "0.1.0",
+  "description": "类 Cursor 的 AI 代码差异预览插件，使用 VSCode 内置 Diff 编辑器 + 浮动 Accept/Reject 标签",
+  "version": "0.2.0",
   "publisher": "your-publisher-name",
   "engines": {
     "vscode": "^1.85.0"
@@ -17,13 +17,23 @@
   "contributes": {
     "commands": [
       {
-        "command": "aiDiffPreview.acceptChunk",
-        "title": "AI Diff: 接受当前变更块",
+        "command": "aiDiffPreview.showDiffPanel",
+        "title": "AI Diff: 显示所有变更文件列表",
+        "icon": "$(list-tree)"
+      },
+      {
+        "command": "aiDiffPreview.showCurrentFileDiff",
+        "title": "AI Diff: 查看当前文件 Diff",
+        "icon": "$(diff)"
+      },
+      {
+        "command": "aiDiffPreview.acceptCurrentEdit",
+        "title": "AI Diff: 接受当前编辑",
         "icon": "$(check)"
       },
       {
-        "command": "aiDiffPreview.rejectChunk",
-        "title": "AI Diff: 拒绝当前变更块",
+        "command": "aiDiffPreview.rejectCurrentEdit",
+        "title": "AI Diff: 拒绝当前编辑",
         "icon": "$(close)"
       },
       {
@@ -37,21 +47,24 @@
         "icon": "$(trash)"
       },
       {
-        "command": "aiDiffPreview.showDiffPanel",
-        "title": "AI Diff: 显示 Diff 面板",
-        "icon": "$(diff)"
+        "command": "aiDiffPreview.nextDiff",
+        "title": "AI Diff: 下一个变更"
+      },
+      {
+        "command": "aiDiffPreview.prevDiff",
+        "title": "AI Diff: 上一个变更"
       }
     ],
     "keybindings": [
       {
-        "command": "aiDiffPreview.acceptChunk",
+        "command": "aiDiffPreview.acceptCurrentEdit",
         "key": "tab",
-        "when": "aiDiffPreview.isActive"
+        "when": "aiDiffPreview.isActive && editorTextFocus"
       },
       {
         "command": "aiDiffPreview.rejectAll",
         "key": "escape",
-        "when": "aiDiffPreview.isActive"
+        "when": "aiDiffPreview.isActive && editorTextFocus"
       },
       {
         "command": "aiDiffPreview.acceptAll",
@@ -64,6 +77,30 @@
         "key": "ctrl+shift+r",
         "mac": "cmd+shift+r",
         "when": "aiDiffPreview.isActive"
+      },
+      {
+        "command": "aiDiffPreview.nextDiff",
+        "key": "alt+down",
+        "mac": "alt+down",
+        "when": "aiDiffPreview.isActive"
+      },
+      {
+        "command": "aiDiffPreview.prevDiff",
+        "key": "alt+up",
+        "mac": "alt+up",
+        "when": "aiDiffPreview.isActive"
+      },
+      {
+        "command": "aiDiffPreview.showDiffPanel",
+        "key": "ctrl+shift+d",
+        "mac": "cmd+shift+d",
+        "when": "aiDiffPreview.isActive"
+      },
+      {
+        "command": "aiDiffPreview.showCurrentFileDiff",
+        "key": "ctrl+shift+f",
+        "mac": "cmd+shift+f",
+        "when": "aiDiffPreview.isActive"
       }
     ],
     "configuration": {
@@ -72,17 +109,29 @@
         "aiDiffPreview.enableAutoTrigger": {
           "type": "boolean",
           "default": true,
-          "description": "启用 Claude Hooks 自动触发"
+          "description": "启用自动触发（监听 pending.json 文件变更）"
         },
-        "aiDiffPreview.showInlineButtons": {
+        "aiDiffPreview.autoShowDiffPerEdit": {
+          "type": "boolean",
+          "default": false,
+          "description": "每次 Edit/Write 后自动弹出 VSCode 内置 Diff 编辑器。关闭时静默收集变更，等待 Stop 后统一展示"
+        },
+        "aiDiffPreview.showAllDiffsOnStop": {
           "type": "boolean",
           "default": true,
-          "description": "显示内联 Accept/Reject 按钮"
+          "description": "对话结束后自动弹出 QuickPick 文件列表，展示所有变更文件。关闭时仅显示状态栏通知"
         },
-        "aiDiffPreview.autoLint": {
-          "type": "boolean",
-          "default": true,
-          "description": "Diff 预览时自动运行 Lint 检查"
+        "aiDiffPreview.floatingLabelMode": {
+          "type": "string",
+          "default": "statusBar",
+          "enum": ["inline", "statusBar", "both", "none"],
+          "enumDescriptions": [
+            "编辑器行内 Accept/Reject 标签（通过 CodeLens 显示）",
+            "状态栏底部固定 Accept/Reject 按钮",
+            "两者都显示",
+            "不显示浮动标签"
+          ],
+          "description": "Accept/Reject 浮动标签显示位置"
         },
         "aiDiffPreview.maxFileSize": {
           "type": "number",