docs: fix cross-refs and scrub machine paths

- Repoint doc-to-doc references from the old docs/ prefix to the co-located
  sibling filenames (docs live under link/ here now).
- Replace the personal ServUO checkout path (C:\Users\...\servuo) with a
  <servuo> placeholder throughout.

link/RESEARCH.md

@@ -3,7 +3,7 @@
 **Status:** Research only, no implementation.
 **Architecture:** Rust sidecar owns a bidirectional WebSocket + JSON endpoint for the website; ServUO links to it over a **local loopback socket**. Tracking players/stats/gold/economy/NPC+player-vendor sales, IDOC/house decay, in-game **`[link`** account linking, and website→game town-crier news. See **Part II** (design/transport/tracking/link), **Part III** (player-vendor, IDOC, town crier, config), and **Part IV** (full character profiles — gear/skills/stats, online & offline, up to 5/account).
 **Date:** 2026-07-07
-**Codebase:** ServUO 57.4 (this repo, `C:\Users\colby\Desktop\servuo`), target framework **.NET Framework 4.8 / x64**.
+**Codebase:** ServUO 57.4 (this repo, `<servuo>`), target framework **.NET Framework 4.8 / x64**.
 **Method:** Grounded in this repo's source. Where the running server would normally be used to confirm behavior, see the note in [§0](#0-note-on-empirical-verification) — the shard was **not running** at research time, so live-boot verification was deliberately skipped and replaced with source-level proof plus evidence from this repo's own crash logs. A ready-to-run empirical probe is included in [Appendix A](#appendix-a-drop-in-empirical-probe-run-this-yourself).
 
 ---