Restructure datasets: move <challenge>/test -> <challenge>/instances

- knapsack: relocate test/academic/* and test/tig/ under instances/
(Dispersion-QKP, standard-QKP, TeamFormation-QKP, TIG); add new instances
- vehicle_routing: refresh TIG instances
- README: document the instances/ layout

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

README.md

@@ -21,15 +21,16 @@ Solver code, formats, and how to run or evaluate algorithms live in **[tig-found
 
 ## What is here
 
+Layout matches this checkout (and may differ from older Hub revisions that used a `test/` prefix):
+
 | Area | Role |
 |------|------|
-| **Instances** | `<challenge>/test/` — `*.txt` problem files under `academic/` (literature sets) and `tig/` (TIG tracks). |
-| **Published best-known values (academic)** | CSV files next to those instances, e.g. `knapsack/test/academic/standard-QKP/standard_qkp_bks.csv`, `job_scheduling/test/academic/bks.csv`, `vehicle_routing/test/academic/bks.csv`, and the other knapsack academic BKS CSVs alongside their splits. |
-| **Long-run summary** | `<challenge>/results/summary_long_run_v*.csv` — rolled-up metrics from the reference run (where that challenge has been published). |
-| **Convergence plots** | `<challenge>/results/plots/*.png` — figures from that run (e.g. average gap vs. time), when present. |
-| **Solutions** | `<challenge>/results/solutions/` — final `.solution` files and optional time-stamped snapshots (`.solution.<seconds>`), laid out to mirror the corresponding instance paths under `test/`, plus `runs.csv` where exported. |
+| **Instances** | `<challenge>/instances/` — `*.txt` instances under splits such as `TIG/`, `standard-QKP/`, `TeamFormation-QKP/`, `Dispersion-QKP/` (knapsack), `tig/`, `fjsp/`, `jsp/` (job scheduling), `TIG/` (vehicle routing), etc. |
+| **Best-known values** | `knapsack/instances/bks.csv`, `job_scheduling/instances/bks.csv`, `vehicle_routing/instances/bks.csv`, plus any BKS CSVs alongside specific academic splits under `instances/`. |
+| **Plots** | `<challenge>/plots/*.png` — convergence or summary figures when present. |
+| **Solutions** | `<challenge>/solutions/` — published `.solution` files (and optional snapshots) mirroring instance paths where bundled, plus any exported `runs.csv`. |
 
-Challenges: **knapsack**, **job_scheduling**, **vehicle_routing**. What appears under each challenge’s `results/` folder depends on what has been published for that challenge (summaries, plots, solutions).
+Challenges: **knapsack**, **job_scheduling**, **vehicle_routing**. Not every challenge includes all of plots, solutions, and every split in a given clone.
 
 ## Hugging Face