feat: ship v0.7.0 with AI knowledge context integration

Add semi-automatic knowledge suggestions and user-confirmed injection across chat, interactive, auto, and wizard modes; fix writing flows to persist full systemPrompt in contextJson.

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

tests/main/interactive-plots.test.ts

@@ -15,11 +15,17 @@ describe('interactive plots integration', () => {
     const session = new AiSessionRepository(db).create('t', AI_TEST_CONFIG.model)
     const service = new InteractiveWritingService(db, new AiClientService(() => AI_TEST_CONFIG))
     const flow = service.start(session.id)
-    service.confirmContext(
-      flow.id,
-      { chapterIds: [], outlineIds: [], settingIds: [], inspirationIds: [] },
-      '林远参加宗门入门考核，演武场测灵石前众人围观。'
-    )
+    service.confirmContext(flow.id, {
+      binding: {
+        chapterIds: [],
+        outlineIds: [],
+        settingIds: [],
+        inspirationIds: [],
+        knowledgeIds: []
+      },
+      systemPrompt: '林远参加宗门入门考核，演武场测灵石前众人围观。',
+      contextSummary: '0章·0纲·0设·0感·0知'
+    })
     const plots = await service.suggestPlots(flow.id)
     expect(plots).toHaveLength(3)
     db.close()