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/flow-context.test.ts

@@ -0,0 +1,46 @@
+import { describe, it, expect, beforeEach, afterEach } from 'vitest'
+import { mkdtempSync, rmSync } from 'fs'
+import { join } from 'path'
+import { tmpdir } from 'os'
+import { BookRegistryService } from '../../src/main/services/book-registry'
+import { buildFlowContextPayload } from '../../src/main/services/flow-context.util'
+import { KnowledgeRepository } from '../../src/main/db/repositories/knowledge.repo'
+
+describe('flow-context.util', () => {
+  let userDir: string
+  let registry: BookRegistryService
+  let bookId: string
+
+  beforeEach(() => {
+    userDir = mkdtempSync(join(tmpdir(), 'bilin-flow-ctx-'))
+    registry = new BookRegistryService(userDir)
+    bookId = registry.create({ name: '书', category: '玄幻' }).id
+  })
+
+  afterEach(() => rmSync(userDir, { recursive: true, force: true }))
+
+  it('buildFlowContextPayload stores systemPrompt and summary', () => {
+    const db = registry.getDb(bookId)
+    const entry = new KnowledgeRepository(db).create({
+      type: 'fact',
+      title: '测试知识',
+      content: '内容',
+      status: 'approved'
+    })
+    const payload = buildFlowContextPayload(
+      {
+        chapterIds: [],
+        outlineIds: [],
+        settingIds: [],
+        inspirationIds: [],
+        knowledgeIds: [entry.id]
+      },
+      registry,
+      bookId,
+      '作者'
+    )
+    expect(payload.systemPrompt).toContain('测试知识')
+    expect(payload.contextSummary).toContain('1')
+    db.close()
+  })
+})