wgt01: add STATUS.md build log + loose-file toolset testing note

STATUS.md: what the generator kit produces, the pipeline commands, what's
verified (build/export/set), first-pass caveats, git state, and next passes.

AGENTS.md §6.3: test tilesets without packing a .hak by dropping loose .set/
.mdl/.wok into ~/Documents/Neverwinter Nights/development/ (toolset reads it).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

AGENTS.md

@@ -313,6 +313,14 @@ tracks Blender 3.x–4.x, **not** nixpkgs' Blender 5.x. Do not "upgrade" it.
 8. **Pack** — `nwn_erf` bundles `.mdl` + `.wok` + `.set` + `.itp` + minimaps +
    any 2das into `<prefix>.hak`. Ship `doortypes.2da` to clients if custom doors.
 
+### 6.3 Testing without a `.hak` (loose files)
+
+For iteration, skip packing: the toolset reads loose resources from
+**`~/Documents/Neverwinter Nights/development/`**. Copy the `.set` + all `.mdl` +
+`.wok` (and, once authored, the `.itp`/minimaps/2das) there, then create a small
+area with the tileset and walk-test. Much faster than pack→reload; pack the
+`.hak` only once the set is validated.
+
 ---
 
 ## 7. Mapping *our* prototype conventions → NWN