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>

public/locales/zh-CN/translation.json

@@ -72,12 +72,17 @@
   "ai.untitledSession": "新对话",
   "ai.contextPlaceholder": "📎 上下文：尚未配置",
   "ai.contextEmpty": "📎 上下文：尚未勾选",
-  "ai.contextSummary": "📎 上下文：{{chapters}}章 · 大纲{{outlines}}条 · 设定{{settings}}个 · 灵感{{inspirations}}条",
+  "ai.contextSummary": "📎 上下文：{{chapters}}章 · 大纲{{outlines}}条 · 设定{{settings}}个 · 灵感{{inspirations}}条 · 知识{{knowledge}}条",
   "ai.contextEditorTitle": "编辑 AI 上下文",
   "ai.contextTab.chapter": "章节",
   "ai.contextTab.outline": "大纲",
   "ai.contextTab.setting": "设定",
   "ai.contextTab.inspiration": "灵感",
+  "ai.contextTab.knowledge": "知识库",
+  "ai.contextRefreshSuggest": "刷新推荐",
+  "ai.contextKnowledgeSuggestTitle": "推荐知识",
+  "ai.contextKnowledgeAllTitle": "全部已审核知识",
+  "ai.contextKnowledgeEmpty": "暂无已审核知识条目",
   "ai.contextEmptyList": "暂无可选项",
   "ai.contextRefresh": "更新上下文",
   "ai.contextSave": "保存",
@@ -100,6 +105,7 @@
   "interactive.step.scene": "场景",
   "interactive.step.review": "确认",
   "interactive.start": "开始交互",
+  "interactive.confirmKnowledge": "确认知识上下文",
   "interactive.loadingPlots": "正在生成剧情走向…",
   "interactive.plotNotePlaceholder": "补充指令（可选）",
   "interactive.generateScene": "生成场景",
@@ -140,6 +146,7 @@
   "wizard.rhythm.mixed": "混合",
   "wizard.styleNotePlaceholder": "可选：本章风格说明",
   "wizard.contextHint": "确认与本章相关的上下文（含大纲/设定中的伏笔线索）",
+  "wizard.knowledgeList": "将注入知识",
   "wizard.previewTitle": "生成策略预览",
   "wizard.refreshPreview": "刷新预览",
   "wizard.startGenerate": "开始生成",
@@ -168,6 +175,10 @@
   "knowledge.type.location": "地点",
   "knowledge.type.relationship": "关系",
   "knowledge.type.fact": "事实",
+  "knowledge.reason.highImportance": "高重要度",
+  "knowledge.reason.chapterRelevant": "与当前章相关",
+  "knowledge.reason.foreshadowBuried": "伏笔待回收",
+  "knowledge.reason.goalMatch": "匹配章节目标",
   "knowledge.titleLabel": "标题",
   "knowledge.contentLabel": "内容",
   "knowledge.importance": "重要度",