refactor(vault): Phase 3 — metadata convergence

- Backfill `created` frontmatter on 266 active notes (git date or mtime)
- Normalize `status` to 4 values: draft/active/done/archived (11 notes)
  - Active/进行中/needs-review → active
  - archive → archived
  - 待执行/conditional → draft
  - 完成/accepted → done
- Declare clipper boundary: 04_Archive/Inbox-Clippings/** exempt from migration
- Update depth rule: max 3 → max 4 levels (new notes only)
- Add metadata-converge.mjs script for reproducibility

02_Areas/Network & VPN/ADR - Gateway Selection RB5009 vs UXG-Lite.md

@@ -1,7 +1,8 @@
 ---
+created: 2026-08-07
 title: "ADR - Gateway Selection: RB5009 vs UCG-Ultra"
 type: architecture-decision-record
-status: conditional
+status: draft
 date: 2026-08-07
 tags: [network, adr, gateway, mikrotik, unifi, tp-link]
 related:

02_Areas/Network & VPN/ADR - Home Network Layer 3 Boundary.md

@@ -1,7 +1,8 @@
 ---
+created: 2026-08-07
 title: "ADR - Home Network Layer 3 Boundary"
 type: architecture-decision-record
-status: accepted
+status: done
 date: 2026-08-07
 tags: [network, adr, vlan, firewall, unifi]
 related:

02_Areas/Network & VPN/Home Network.md

@@ -1,4 +1,5 @@
 ---
+created: 2026-08-07
 title: Home Network
 type: reference
 tags: [network, lan, homelab, dns, proxy]

02_Areas/Network & VPN/VPN-Subscriptions.md

@@ -1,4 +1,5 @@
 ---
+created: 2026-01-05
 ⚠️ **警告 WARNING**: 此文件包含敏感信息（VPN订阅链接和tokens）
 - 建议迁移到密码管理器（如1Password, Bitwarden）
 - 避免提交到公开git仓库