qa: fresh-checkout build PASS (0.1.0 release check)

Clean clone of main at 4bc41e9 + git lfs pull (check-lfs.sh OK, 130 files);
GigLineEditor (28.2s) and GigLine (26.9s) both built from scratch with the
documented external engine path. Evidence + exact steps recorded in
Docs/release-checks.md; TODO item closed.

Docs/release-checks.md

@@ -40,7 +40,7 @@ Measured at 1440p on the development workstation: Bazzite, Ryzen 7 7700X, 64 GB
 | `0.1.0` | Placement vs references | PASS (with deliberate simplifications) | Section below, 2026-11-08 | 2026-11-08 |
 | `0.1.0` | Collision and packaging | PASS — no blocking collision, no invisible walls, no seam gaps (see audit note) | `-qaselftest` on the packaged build, 2026-11-08 | 2026-11-08 |
 | `0.1.0` | 60 FPS at 1440p         | PASS — 2.42 ms avg (414 fps), p99 3.01 ms at 2560×1440, TSR on, VSync off, no FG | `-qaselftest` perf capture, `Docs/perf/0.1.0-walk-frametimes.csv` | 2026-11-08 |
-| `0.1.0` | Fresh checkout build    | —      | —        | —    |
+| `0.1.0` | Fresh checkout build    | PASS — clean clone of `main` (`4bc41e9`), `git lfs pull` + `check-lfs.sh` OK (130 LFS files), both `GigLineEditor` and `GigLine` targets built with the documented engine | `/tmp/fresh-check`, 2026-11-08 | 2026-11-08 |
 | `0.1.0` | Packaged Linux build    | —      | —        | —    |
 
 ## `0.1.0` — Placement vs references — record (2026-11-08)
@@ -153,3 +153,30 @@ game instance / busy compositor overlapped the capture; repeated clean runs
 ```
 
 Committed frame-time series: `Docs/perf/0.1.0-walk-frametimes.csv`.
+
+## `0.1.0` — Fresh checkout build — record (2026-11-08)
+
+Followed the documented steps in [`Docs/build.md`](build.md) exactly, into a clean
+directory with no prior state:
+
+```bash
+git clone https://git.allucanget.biz/zwitschi/gig-line.git /tmp/fresh-check
+cd /tmp/fresh-check && git lfs install && git lfs pull
+Tools/check-lfs.sh                      # -> "LFS check OK: 130 LFS-tracked file(s)"
+cd /run/media/system/DATA/Engines/UE_5.8.4
+Engine/Build/BatchFiles/Linux/Build.sh GigLineEditor Linux Development \
+  -project=/tmp/fresh-check/Game/GigLine/GigLine.uproject -WaitMutex
+Engine/Build/BatchFiles/Linux/Build.sh GigLine Linux Development \
+  -project=/tmp/fresh-check/Game/GigLine/GigLine.uproject -WaitMutex
+```
+
+- Clone of `main` at `4bc41e9`; LFS objects fetched (`DemoMap.umap` is real UE
+  package content, not a pointer).
+- `GigLineEditor` → **Result: Succeeded** (28.2 s); produced
+  `/tmp/fresh-check/Game/GigLine/Binaries/Linux/libUnrealEditor-GigLine.so`.
+- `GigLine` (game) → **Result: Succeeded** (26.9 s).
+- Engine: documented external install at `/run/media/system/DATA/Engines/UE_5.8.4`
+  (UE 5.8.4), system clang; no machine-specific paths beyond the documented
+  `-project=` argument.
+
+**Verdict: PASS.**