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/ai-context-builder.test.ts

@@ -7,6 +7,7 @@ import { migrate } from '../../src/main/db/migrate'
 import { ChapterRepository } from '../../src/main/db/repositories/chapter.repo'
 import { VolumeRepository } from '../../src/main/db/repositories/volume.repo'
 import { SettingRepository } from '../../src/main/db/repositories/setting.repo'
+import { KnowledgeRepository } from '../../src/main/db/repositories/knowledge.repo'
 import { BookRegistryService } from '../../src/main/services/book-registry'
 import { aiContextBuilder } from '../../src/main/services/ai-context-builder.service'
 import type { SqliteDb } from '../../src/main/db/types'
@@ -38,7 +39,7 @@ describe('AiContextBuilderService', () => {
     const chapter = chapters.create(volId, '长章节', 0, longHtml)
 
     const result = aiContextBuilder.build(
-      { chapterIds: [chapter.id], outlineIds: [], settingIds: [], inspirationIds: [] },
+      { chapterIds: [chapter.id], outlineIds: [], settingIds: [], inspirationIds: [], knowledgeIds: [] },
       registry,
       bookId,
       '作者'
@@ -58,7 +59,7 @@ describe('AiContextBuilderService', () => {
     }
 
     const result = aiContextBuilder.build(
-      { chapterIds: ids, outlineIds: [], settingIds: [], inspirationIds: [] },
+      { chapterIds: ids, outlineIds: [], settingIds: [], inspirationIds: [], knowledgeIds: [] },
       registry,
       bookId,
       '作者'
@@ -74,7 +75,7 @@ describe('AiContextBuilderService', () => {
     const setting = settings.create('character', '主角林远', '少年修士')
 
     const result = aiContextBuilder.build(
-      { chapterIds: [], outlineIds: [], settingIds: [setting.id], inspirationIds: [] },
+      { chapterIds: [], outlineIds: [], settingIds: [setting.id], inspirationIds: [], knowledgeIds: [] },
       registry,
       bookId,
       '作者'
@@ -83,4 +84,60 @@ describe('AiContextBuilderService', () => {
     expect(result.preview[0].title).toBe('主角林远')
     expect(result.systemPrompt).toContain('主角林远')
   })
+
+  it('UT-CTX-02: build includes knowledge preview items', () => {
+    const know = new KnowledgeRepository(db)
+    const entry = know.create({
+      type: 'foreshadow',
+      title: '测灵石',
+      content: '石头发热',
+      status: 'approved'
+    })
+    const result = aiContextBuilder.build(
+      {
+        chapterIds: [],
+        outlineIds: [],
+        settingIds: [],
+        inspirationIds: [],
+        knowledgeIds: [entry.id]
+      },
+      registry,
+      bookId,
+      '作者'
+    )
+    expect(result.preview.some((p) => p.kind === 'knowledge')).toBe(true)
+    expect(result.systemPrompt).toContain('【知识·伏笔】')
+    expect(result.systemPrompt).toContain('测灵石')
+  })
+
+  it('UT-CTX-03: caps knowledge section at 4000 chars', () => {
+    const know = new KnowledgeRepository(db)
+    const ids: string[] = []
+    for (let i = 0; i < 20; i++) {
+      const e = know.create({
+        type: 'fact',
+        title: `条目${i}`,
+        content: '长'.repeat(400),
+        importance: 5,
+        status: 'approved'
+      })
+      ids.push(e.id)
+    }
+    const result = aiContextBuilder.build(
+      {
+        chapterIds: [],
+        outlineIds: [],
+        settingIds: [],
+        inspirationIds: [],
+        knowledgeIds: ids
+      },
+      registry,
+      bookId,
+      '作者'
+    )
+    const knowledgeChars = result.preview
+      .filter((p) => p.kind === 'knowledge')
+      .reduce((s, p) => s + p.charCount, 0)
+    expect(knowledgeChars).toBeLessThanOrEqual(4000)
+  })
 })