cleanup: 删除 2 个 Obsidian 误点 adhoc 概念产生的 0 字节孤儿

- 概念-A流与B流.md(目标应是 prop-acc/concepts/adhoc/flow-a-vs-flow-b.md 的旧 basename alias)
- 概念-CollectionOrder与Receipt.md(目标应是 collection-order-and-receipt.md 的旧 basename alias)

复盘:Obsidian 在 Reading 视图点击未解析的 [[场景-...]] / [[概念-...]] 等
旧 basename WikiLink 时,会按 "New link format: Shortest path" 设置在
vault 根目录建空文件,而不是按 aliases 解析到既有目标。

仍未根治。建议:
- Obsidian Settings → Files & Links → New link format → "Absolute path in vault"
- 或在点击未解析链接前先 Cmd+P → "Reload app without saving" 刷新 alias 索引

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.obsidian/workspace.json

@@ -196,6 +196,8 @@
   },
   "active": "b06ed69835363258",
   "lastOpenFiles": [
+    "prop-acc/maps/deposit-knowledge-map.md",
+    "prop-acc/concepts/deposit/deposit-vs-adhoc-vs-prepaid.md",
     "prop-acc/concepts/deposit/red-receipt-design.md",
     "prop-acc/concepts/deposit/transaction-types.md",
     "prop-acc/concepts/deposit/payer-types.md",
@@ -221,8 +223,6 @@
     "prop-acc/scenarios/adhoc/receipt-reprint-lost.md",
     "prop-acc/scenarios/adhoc/receipt-onsite-print.md",
     "prop-acc/scenarios/adhoc/receipt-miniapp-pdf-download.md",
-    "prop-acc/scenarios/adhoc/exception-paid-but-cannot-deliver.md",
-    "prop-acc/scenarios/adhoc/exception-payment-split-failure.md",
     "prop-acc/scenarios/adhoc",
     "prop-acc/concepts/adhoc",
     "resident-portal/scenarios",