Mount the bundle at bundled/ so it does not collide with the loose copy

This repo carries data/smoke/labels.csv for the loose-file config and the same
data inside smoke.hdb. Mounting the bundle at data/ made two sources claim one
path, which the provider refuses. Giving the bundle its own mount keeps both
configs working.

configs/tabular_bundle.hcf

@@ -1,8 +1,9 @@
 {
   "_notes": [
-    "Bundle-backed variant of tabular_smoke: the dataset arrives as smoke.hdb",
+    "Bundle-backed variant: the dataset arrives as smoke.hdb rather than loose files.",
-    "rather than as loose files. mount='data' places the bundle's smoke/labels.csv",
+    "Mounted at 'bundled/' rather than 'data/' because this repo also carries the",
-    "at data/smoke/labels.csv, which is what metadata_csv below expects."
+    "loose copy for tabular_smoke.json \u2014 two sources for one path is refused, so the",
+    "bundle gets its own mount point and metadata_csv points there."
   ],
   "run_name": "tabular_bundle",
   "num_classes": 2,
@@ -16,7 +17,7 @@
   "data": {
     "module": "hypertower_core.profiles.generic",
     "args": {
-      "metadata_csv": "data/smoke/labels.csv",
+      "metadata_csv": "bundled/smoke/labels.csv",
       "id_column": "sample_id",
       "label_col": "diagnosis",
       "target_type": "classification",
@@ -80,7 +81,7 @@
     {
       "file": "smoke.hdb",
       "encrypted": false,
-      "mount": "data",
+      "mount": "bundled",
       "unpacked_mb": 1,
       "sha256": "b01dbf19fe3639a1b75fb80d75b31158f78dc42bec3767fe1caf94afd5b8fda5"
     }