feat: 适配 DSH 命名契约重命名（jobs/terminal/webServer）并处理 Session log 按钮位置

- tasks→jobs：ctx.jobs / job_output / job_id / session/jobs / jobsBySession / Job* 词汇
- httpServer→webServer（inject + augmentation + register/registerUpgrade）
- autoOpenTasks→autoOpenJobs 偏好键
- 右上角开关簇回到角落，注入 CSS 挤开 header 的「Session log」胶囊

src/prefs-shared.ts

@@ -22,10 +22,10 @@ export interface SidebarPrefs {
   autoOpenSubagent: boolean
   /**
    * Whether the sidebar auto-activates (opens the panel) and expands the
-   * Tasks page when a NEW background task appears for the current
-   * conversation (any new task id, not just the first one).
+   * Jobs page when a NEW background job appears for the current
+   * conversation (any new job id, not just the first one).
    */
-  autoOpenTasks: boolean
+  autoOpenJobs: boolean
   /**
    * Whether the model-facing agent terminal tools (terminal_create / list /
    * send / read / wait_for / resize / signal / close) are injected into the
@@ -109,7 +109,7 @@ export const SIDEBAR_PREFS_DEFAULTS: SidebarPrefs = {
   openByDefault: true,
   defaultWidthPercent: WIDTH_PERCENT_DEFAULT,
   autoOpenSubagent: true,
-  autoOpenTasks: true,
+  autoOpenJobs: true,
   agentTerminalTools: false,
   bottomPanelAutoTerminal: true,
   interceptOpenPath: true,