docs: record completed standalone migration

MIGRATION.md

@@ -9,6 +9,23 @@
 - 公共状态：`https://gomars.fun/quant-os/status/`
 - 原仓：`https://git.gomars.fun/boat/quants-strategies.git`
 
+## 迁移执行结果
+
+2026-07-30 已完成独立仓、数据资产、公共状态和旧仓边界切换：
+
+- 独立仓 clean clone 的 315 项测试通过，6 项可选 runtime 测试跳过；
+- `data/`、`artifacts/`、`mlruns/` 共 4,281 个文件逐文件 SHA-256 一致，
+  inventory hash 为
+  `d18774756d56eb89239643bd91792feb5e1c7b5ab8fd804bf52f6d429c448e91`；
+- 旧 `.venv-qlib312` 未迁入新项目，随迁移前完整目录保留在本机
+  `../quant-os-migration-backup-20260730`，新环境按 requirements 重建；
+- 原 `quants-strategies` 仓在提交 `bd61d83` 后仅保留 `quant-os/README.md`
+  迁移指针，原仓的 Cash Layer 未提交改动未进入迁移提交；
+- 新公共地址返回 200，发布文件与独立仓逐字节一致；六个旧 Quant OS 精确地址
+  暂时返回 302 到新地址，`quants-strategies` 下的 Cash Layer 路由保持 200。
+
+这些本地数据与备份均不进入 Git；公开状态仍是脱敏、构建时生成的静态快照。
+
 ## 历史保留方式
 
 从原仓已提交 `master` 执行：

status/status-data.js

@@ -1475,14 +1475,14 @@ window.QUANT_OS_PUBLIC_STATUS = {
   "provenance": {
     "baselineConfig": "configs/baseline.json",
     "bundleManifest": "dist/bundle_manifest.json",
-    "payloadSha256": "4f3cbc98bd700c905c609eae3e0c398514c9fb42487e82ed90b90e534f965815",
+    "payloadSha256": "2582133135aa956bb567fd009e73d31c3242ffb4f89b8cf70d2932027cc5d763",
     "payloadSha256Semantics": "SHA-256 of canonical payload before payloadSha256 is added.",
     "platformMatrix": "docs/PLATFORM_MATRIX.md",
     "production80Assessment": "profiles/production-80/current-assessment.json",
     "production80Standard": "profiles/production-80/standard.json",
     "releaseReachability": "releases/quant60-research-candidate-v1/reachability.json",
     "scorecard": "gate_scorecard.json",
-    "sourceSetSha256": "c971896dfe8406c12100136ad767d289809190c50f87abd072a428f7c40a73e2",
+    "sourceSetSha256": "92485e439b1ecfb75166f8750e26b4d392d44ff614755295635e7761fa255c5c",
     "sources": [
       {
         "path": "gate_scorecard.json",
@@ -1566,7 +1566,7 @@ window.QUANT_OS_PUBLIC_STATUS = {
       },
       {
         "path": "MIGRATION.md",
-        "sha256": "1d86ef7d854dc7c2eed80d2c5e5de0ee30bf87035be9be27a2eb8cb098277a5c"
+        "sha256": "2b86f9f4ced687de61c4a3268d57bb38cde4fb1fac75be61ec8cd18c12ccdd26"
       },
       {
         "path": "ops/README.md",