feat: 三栏比例缩放 + SeedanceContent视频上传 + 本地存储基建 (0.0.22)

三栏布局
- ResizeObserver 等比例分配替代固定默认值恢复
- 修复拖拽+窗口调整竞态卡死（needsRecalcRef 延迟补算）
- containerRef.current 动态读取 DOM 替代闭包 el

Seedance2Content
- 从占位文本重构为内容编排控件（文本+图片/视频/音频上传）
- 根据 spec.image_files/video_files/audio_files 动态渲染上传区域
- 值 JSON 序列化 → 提交时转 ContentItem[]（text/image_url/video_url/audio_url）

图片上传兼容视频文件
- buildAccept 根据 file_filter 区分 image/video 前缀
- createMediaBeforeUpload 动态放行 video/* MIME
- 公共模块 media-upload-utils.ts

本地存储基建
- sql.js (WASM SQLite) + safeStorage 加密持久化
- 8个IPC文件操作通道 + resolveSafe 路径穿越防护
- <userData>/heixiu-data/ 沙箱 + JWT用户隔离
- 7表DDL + 游标分页 + LRU媒体淘汰

其他
- 修复 errorMessageRef 渲染期写入警告
- 媒体预览回退直接URL（<img>无CORS限制）+ output_type类型补充
- CSP wasm-unsafe-eval + https: CDN媒体源

src/infrastructure/storage/param-store.ts

@@ -0,0 +1,80 @@
+// ============================================================
+// infrastructure/storage/param-store.ts — 参数历史本地存储
+//
+// 职责：
+//   - 任务提交后保存输入参数快照（task_id 主键）
+//   - 任务完成后回填输出数据
+//   - 按模型查询历史参数列表（回填菜单数据源）
+// ============================================================
+
+import { execute, queryAll, queryOne } from './db-core';
+import { getCurrentUserId } from './user-scope';
+import type { ParamHistoryEntry } from './types';
+
+const MAX_PER_MODEL = 20;
+
+// ---------- API ----------
+
+export function saveParamSnapshot(
+  taskId: string,
+  modelId: string,
+  modelName: string,
+  inputParams: Record<string, unknown>,
+  tag?: string,
+): void {
+  const uid = getCurrentUserId();
+  execute(
+    `INSERT OR REPLACE INTO param_history (task_id, user_id, model_id, model_name, input_params_json, tag, created_at)
+     VALUES (?, ?, ?, ?, ?, ?, ?)`,
+    [taskId, uid, modelId, modelName, JSON.stringify(inputParams), tag || null, Date.now()],
+  );
+  // 裁剪旧记录
+  prune(modelId, uid);
+}
+
+export function fillOutputData(taskId: string, outputData: Record<string, unknown>): void {
+  execute(
+    `UPDATE param_history SET output_data_json = ? WHERE task_id = ?`,
+    [JSON.stringify(outputData), taskId],
+  );
+}
+
+export function getParamByTaskId(taskId: string): ParamHistoryEntry | null {
+  return queryOne<ParamHistoryEntry>(`SELECT * FROM param_history WHERE task_id = ?`, [taskId]);
+}
+
+export function getParamHistory(modelId: string, limit = 10): ParamHistoryEntry[] {
+  const uid = getCurrentUserId();
+  return queryAll<ParamHistoryEntry>(
+    `SELECT * FROM param_history WHERE user_id = ? AND model_id = ? ORDER BY created_at DESC LIMIT ?`,
+    [uid, modelId, limit],
+  );
+}
+
+export function parseParams(entry: ParamHistoryEntry): Record<string, unknown> {
+  try { return JSON.parse(entry.input_params_json) as Record<string, unknown>; } catch { return {}; }
+}
+
+export function deleteParamHistory(id: number): void {
+  execute(`DELETE FROM param_history WHERE id = ?`, [id]);
+}
+
+export function clearUserParams(): void {
+  execute(`DELETE FROM param_history WHERE user_id = ?`, [getCurrentUserId()]);
+}
+
+// ---------- 内部 ----------
+
+function prune(modelId: string, userId: string): void {
+  try {
+    const rows = queryAll<ParamHistoryEntry>(
+      `SELECT id FROM param_history WHERE user_id = ? AND model_id = ? ORDER BY created_at DESC`,
+      [userId, modelId],
+    );
+    if (rows.length <= MAX_PER_MODEL) return;
+    const toDelete = rows.slice(MAX_PER_MODEL);
+    for (const r of toDelete) {
+      if (r.id) execute(`DELETE FROM param_history WHERE id = ?`, [r.id]);
+    }
+  } catch { /* ignore */ }
+}