feat: ship v0.6.0 with cockpit, knowledge base, and chapter bridge

Deliver P5 writer workflow: writing cockpit, manual knowledge CRUD with review, chapter bridge with optional AI, publish status, and stock buffer reminders.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/main/services/global-settings.ts

@@ -20,6 +20,8 @@ function defaults(): GlobalSettings {
     theme: 'default',
     language: 'zh-CN',
     dailyWordGoal: 0,
+    updateSchedule: 'none',
+    stockBufferThreshold: 3,
     shortcuts: { ...DEFAULT_SHORTCUTS },
     snapshotIntervalMs: 300_000,
     snapshotMaxAuto: 20,
@@ -45,6 +47,8 @@ export class GlobalSettingsService {
     return {
       ...defaults(),
       ...raw,
+      updateSchedule: raw.updateSchedule ?? 'none',
+      stockBufferThreshold: raw.stockBufferThreshold ?? 3,
       shortcuts: { ...DEFAULT_SHORTCUTS, ...raw.shortcuts },
       aiConfig: { ...DEFAULT_AI_CONFIG, ...raw.aiConfig }
     }