✨ feat(vscode): 发布按钮扩展侧 handler，删除分支同步

Claude-Session: https://claude.ai/code/session_01HTMgwaE3woqM5yvsHiuSAa

vscode/src/panel/KanbanPanel.ts

@@ -32,6 +32,7 @@ import * as issues from './handlers/issues'
 import * as managedSessions from './handlers/managedSessions'
 import * as prFiles from './handlers/prFiles'
 import * as profileAssets from './handlers/profileAssets'
+import * as release from './handlers/release'
 import * as sessionHandoff from './handlers/sessionHandoff'
 import * as sessions from './handlers/sessions'
 import * as settings from './handlers/settings'
@@ -177,6 +178,10 @@ export class KanbanWebviewPanel {
   // internal: handler 模块访问
   commitRunning = false
 
+  /** 发布按钮三个写动作（切发布 / 摘修复 / 部署）共用的互斥标志，运行中按钮禁用。 */
+  // internal: handler 模块访问
+  releaseRunning = false
+
   /**
    * Whether the workspace git working tree currently has any uncommitted
    * changes (working tree, index, or untracked). Populated by
@@ -506,12 +511,20 @@ export class KanbanWebviewPanel {
       terminals.handleCloseSessionTab(this, msg.issueNumber, msg.kind)
       return
     }
-    if (msg.type === 'branch-sync/check') {
-      void this.handleBranchSyncCheck()
+    if (msg.type === 'release/check') {
+      void this.handleReleaseStatus()
       return
     }
-    if (msg.type === 'branch-sync/run') {
-      void toolbar.handleBranchSyncRun(this)
+    if (msg.type === 'release/cut') {
+      void release.handleReleaseCut(this)
+      return
+    }
+    if (msg.type === 'release/cherry-pick') {
+      void release.handleReleaseCherryPick(this)
+      return
+    }
+    if (msg.type === 'release/deploy') {
+      void release.handleReleaseDeploy(this)
       return
     }
     if (msg.type === 'env-lock/check') {
@@ -1015,16 +1028,12 @@ export class KanbanWebviewPanel {
   }
 
   /**
-   * Compute how far the remote auto-build branch is behind the remote dev
-   * branch, then push a `branch-sync/status` to the webview. Called on
-   * webview init, after `settings/save`, and after a successful sync.
-   *
-   * Empty `autoBuildBranch` setting means "use devBranch" — collapsing to
-   * the equal-branch case in `checkBranchSync`, which marks it unavailable.
+   * 计算当期发布点与未发布提交数，推 `release/status` 给 webview。
+   * 触发时机：webview 就绪 / 用户刷新、`settings/save` 之后、收到 push webhook、每个发布动作前后。
    */
   // internal: handler 模块访问
-  handleBranchSyncCheck(): Promise<void> {
-    return toolbar.handleBranchSyncCheck(this)
+  handleReleaseStatus(): Promise<void> {
+    return release.handleReleaseStatus(this)
   }
 
   /**